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Diffstat (limited to 'sound/oss/es1371.c')
| -rw-r--r-- | sound/oss/es1371.c | 3097 |
1 files changed, 3097 insertions, 0 deletions
diff --git a/sound/oss/es1371.c b/sound/oss/es1371.c new file mode 100644 index 00000000000..a50fddaeea2 --- /dev/null +++ b/sound/oss/es1371.c @@ -0,0 +1,3097 @@ +/*****************************************************************************/ + +/* + * es1371.c -- Creative Ensoniq ES1371. + * + * Copyright (C) 1998-2001, 2003 Thomas Sailer (t.sailer@alumni.ethz.ch) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * + * Special thanks to Ensoniq + * + * Supported devices: + * /dev/dsp standard /dev/dsp device, (mostly) OSS compatible + * /dev/mixer standard /dev/mixer device, (mostly) OSS compatible + * /dev/dsp1 additional DAC, like /dev/dsp, but outputs to mixer "SYNTH" setting + * /dev/midi simple MIDI UART interface, no ioctl + * + * NOTE: the card does not have any FM/Wavetable synthesizer, it is supposed + * to be done in software. That is what /dev/dac is for. By now (Q2 1998) + * there are several MIDI to PCM (WAV) packages, one of them is timidity. + * + * Revision history + * 04.06.1998 0.1 Initial release + * Mixer stuff should be overhauled; especially optional AC97 mixer bits + * should be detected. This results in strange behaviour of some mixer + * settings, like master volume and mic. + * 08.06.1998 0.2 First release using Alan Cox' soundcore instead of miscdevice + * 03.08.1998 0.3 Do not include modversions.h + * Now mixer behaviour can basically be selected between + * "OSS documented" and "OSS actual" behaviour + * 31.08.1998 0.4 Fix realplayer problems - dac.count issues + * 27.10.1998 0.5 Fix joystick support + * -- Oliver Neukum (c188@org.chemie.uni-muenchen.de) + * 10.12.1998 0.6 Fix drain_dac trying to wait on not yet initialized DMA + * 23.12.1998 0.7 Fix a few f_file & FMODE_ bugs + * Don't wake up app until there are fragsize bytes to read/write + * 06.01.1999 0.8 remove the silly SA_INTERRUPT flag. + * hopefully killed the egcs section type conflict + * 12.03.1999 0.9 cinfo.blocks should be reset after GETxPTR ioctl. + * reported by Johan Maes <joma@telindus.be> + * 22.03.1999 0.10 return EAGAIN instead of EBUSY when O_NONBLOCK + * read/write cannot be executed + * 07.04.1999 0.11 implemented the following ioctl's: SOUND_PCM_READ_RATE, + * SOUND_PCM_READ_CHANNELS, SOUND_PCM_READ_BITS; + * Alpha fixes reported by Peter Jones <pjones@redhat.com> + * Another Alpha fix (wait_src_ready in init routine) + * reported by "Ivan N. Kokshaysky" <ink@jurassic.park.msu.ru> + * Note: joystick address handling might still be wrong on archs + * other than i386 + * 15.06.1999 0.12 Fix bad allocation bug. + * Thanks to Deti Fliegl <fliegl@in.tum.de> + * 28.06.1999 0.13 Add pci_set_master + * 03.08.1999 0.14 adapt to Linus' new __setup/__initcall + * added kernel command line option "es1371=joystickaddr" + * removed CONFIG_SOUND_ES1371_JOYPORT_BOOT kludge + * 10.08.1999 0.15 (Re)added S/PDIF module option for cards revision >= 4. + * Initial version by Dave Platt <dplatt@snulbug.mtview.ca.us>. + * module_init/__setup fixes + * 08.16.1999 0.16 Joe Cotellese <joec@ensoniq.com> + * Added detection for ES1371 revision ID so that we can + * detect the ES1373 and later parts. + * added AC97 #defines for readability + * added a /proc file system for dumping hardware state + * updated SRC and CODEC w/r functions to accommodate bugs + * in some versions of the ES137x chips. + * 31.08.1999 0.17 add spin_lock_init + * replaced current->state = x with set_current_state(x) + * 03.09.1999 0.18 change read semantics for MIDI to match + * OSS more closely; remove possible wakeup race + * 21.10.1999 0.19 Round sampling rates, requested by + * Kasamatsu Kenichi <t29w0267@ip.media.kyoto-u.ac.jp> + * 27.10.1999 0.20 Added SigmaTel 3D enhancement string + * Codec ID printing changes + * 28.10.1999 0.21 More waitqueue races fixed + * Joe Cotellese <joec@ensoniq.com> + * Changed PCI detection routine so we can more easily + * detect ES137x chip and derivatives. + * 05.01.2000 0.22 Should now work with rev7 boards; patch by + * Eric Lemar, elemar@cs.washington.edu + * 08.01.2000 0.23 Prevent some ioctl's from returning bad count values on underrun/overrun; + * Tim Janik's BSE (Bedevilled Sound Engine) found this + * 07.02.2000 0.24 Use pci_alloc_consistent and pci_register_driver + * 07.02.2000 0.25 Use ac97_codec + * 01.03.2000 0.26 SPDIF patch by Mikael Bouillot <mikael.bouillot@bigfoot.com> + * Use pci_module_init + * 21.11.2000 0.27 Initialize dma buffers in poll, otherwise poll may return a bogus mask + * 12.12.2000 0.28 More dma buffer initializations, patch from + * Tjeerd Mulder <tjeerd.mulder@fujitsu-siemens.com> + * 05.01.2001 0.29 Hopefully updates will not be required anymore when Creative bumps + * the CT5880 revision. + * suggested by Stephan Müller <smueller@chronox.de> + * 31.01.2001 0.30 Register/Unregister gameport + * Fix SETTRIGGER non OSS API conformity + * 14.07.2001 0.31 Add list of laptops needing amplifier control + * 03.01.2003 0.32 open_mode fixes from Georg Acher <acher@in.tum.de> + */ + +/*****************************************************************************/ + +#include <linux/interrupt.h> +#include <linux/module.h> +#include <linux/string.h> +#include <linux/ioport.h> +#include <linux/sched.h> +#include <linux/delay.h> +#include <linux/sound.h> +#include <linux/slab.h> +#include <linux/soundcard.h> +#include <linux/pci.h> +#include <linux/init.h> +#include <linux/poll.h> +#include <linux/bitops.h> +#include <linux/proc_fs.h> +#include <linux/spinlock.h> +#include <linux/smp_lock.h> +#include <linux/ac97_codec.h> +#include <linux/gameport.h> +#include <linux/wait.h> + +#include <asm/io.h> +#include <asm/page.h> +#include <asm/uaccess.h> + +/* --------------------------------------------------------------------- */ + +#undef OSS_DOCUMENTED_MIXER_SEMANTICS +#define ES1371_DEBUG +#define DBG(x) {} +/*#define DBG(x) {x}*/ + +/* --------------------------------------------------------------------- */ + +#ifndef PCI_VENDOR_ID_ENSONIQ +#define PCI_VENDOR_ID_ENSONIQ 0x1274 +#endif + +#ifndef PCI_VENDOR_ID_ECTIVA +#define PCI_VENDOR_ID_ECTIVA 0x1102 +#endif + +#ifndef PCI_DEVICE_ID_ENSONIQ_ES1371 +#define PCI_DEVICE_ID_ENSONIQ_ES1371 0x1371 +#endif + +#ifndef PCI_DEVICE_ID_ENSONIQ_CT5880 +#define PCI_DEVICE_ID_ENSONIQ_CT5880 0x5880 +#endif + +#ifndef PCI_DEVICE_ID_ECTIVA_EV1938 +#define PCI_DEVICE_ID_ECTIVA_EV1938 0x8938 +#endif + +/* ES1371 chip ID */ +/* This is a little confusing because all ES1371 compatible chips have the + same DEVICE_ID, the only thing differentiating them is the REV_ID field. + This is only significant if you want to enable features on the later parts. + Yes, I know it's stupid and why didn't we use the sub IDs? +*/ +#define ES1371REV_ES1373_A 0x04 +#define ES1371REV_ES1373_B 0x06 +#define ES1371REV_CT5880_A 0x07 +#define CT5880REV_CT5880_C 0x02 +#define CT5880REV_CT5880_D 0x03 +#define ES1371REV_ES1371_B 0x09 +#define EV1938REV_EV1938_A 0x00 +#define ES1371REV_ES1373_8 0x08 + +#define ES1371_MAGIC ((PCI_VENDOR_ID_ENSONIQ<<16)|PCI_DEVICE_ID_ENSONIQ_ES1371) + +#define ES1371_EXTENT 0x40 +#define JOY_EXTENT 8 + +#define ES1371_REG_CONTROL 0x00 +#define ES1371_REG_STATUS 0x04 /* on the 5880 it is control/status */ +#define ES1371_REG_UART_DATA 0x08 +#define ES1371_REG_UART_STATUS 0x09 +#define ES1371_REG_UART_CONTROL 0x09 +#define ES1371_REG_UART_TEST 0x0a +#define ES1371_REG_MEMPAGE 0x0c +#define ES1371_REG_SRCONV 0x10 +#define ES1371_REG_CODEC 0x14 +#define ES1371_REG_LEGACY 0x18 +#define ES1371_REG_SERIAL_CONTROL 0x20 +#define ES1371_REG_DAC1_SCOUNT 0x24 +#define ES1371_REG_DAC2_SCOUNT 0x28 +#define ES1371_REG_ADC_SCOUNT 0x2c + +#define ES1371_REG_DAC1_FRAMEADR 0xc30 +#define ES1371_REG_DAC1_FRAMECNT 0xc34 +#define ES1371_REG_DAC2_FRAMEADR 0xc38 +#define ES1371_REG_DAC2_FRAMECNT 0xc3c +#define ES1371_REG_ADC_FRAMEADR 0xd30 +#define ES1371_REG_ADC_FRAMECNT 0xd34 + +#define ES1371_FMT_U8_MONO 0 +#define ES1371_FMT_U8_STEREO 1 +#define ES1371_FMT_S16_MONO 2 +#define ES1371_FMT_S16_STEREO 3 +#define ES1371_FMT_STEREO 1 +#define ES1371_FMT_S16 2 +#define ES1371_FMT_MASK 3 + +static const unsigned sample_size[] = { 1, 2, 2, 4 }; +static const unsigned sample_shift[] = { 0, 1, 1, 2 }; + +#define CTRL_RECEN_B 0x08000000 /* 1 = don't mix analog in to digital out */ +#define CTRL_SPDIFEN_B 0x04000000 +#define CTRL_JOY_SHIFT 24 +#define CTRL_JOY_MASK 3 +#define CTRL_JOY_200 0x00000000 /* joystick base address */ +#define CTRL_JOY_208 0x01000000 +#define CTRL_JOY_210 0x02000000 +#define CTRL_JOY_218 0x03000000 +#define CTRL_GPIO_IN0 0x00100000 /* general purpose inputs/outputs */ +#define CTRL_GPIO_IN1 0x00200000 +#define CTRL_GPIO_IN2 0x00400000 +#define CTRL_GPIO_IN3 0x00800000 +#define CTRL_GPIO_OUT0 0x00010000 +#define CTRL_GPIO_OUT1 0x00020000 +#define CTRL_GPIO_OUT2 0x00040000 +#define CTRL_GPIO_OUT3 0x00080000 +#define CTRL_MSFMTSEL 0x00008000 /* MPEG serial data fmt: 0 = Sony, 1 = I2S */ +#define CTRL_SYNCRES 0x00004000 /* AC97 warm reset */ +#define CTRL_ADCSTOP 0x00002000 /* stop ADC transfers */ +#define CTRL_PWR_INTRM 0x00001000 /* 1 = power level ints enabled */ +#define CTRL_M_CB 0x00000800 /* recording source: 0 = ADC, 1 = MPEG */ +#define CTRL_CCB_INTRM 0x00000400 /* 1 = CCB "voice" ints enabled */ +#define CTRL_PDLEV0 0x00000000 /* power down level */ +#define CTRL_PDLEV1 0x00000100 +#define CTRL_PDLEV2 0x00000200 +#define CTRL_PDLEV3 0x00000300 +#define CTRL_BREQ 0x00000080 /* 1 = test mode (internal mem test) */ +#define CTRL_DAC1_EN 0x00000040 /* enable DAC1 */ +#define CTRL_DAC2_EN 0x00000020 /* enable DAC2 */ +#define CTRL_ADC_EN 0x00000010 /* enable ADC */ +#define CTRL_UART_EN 0x00000008 /* enable MIDI uart */ +#define CTRL_JYSTK_EN 0x00000004 /* enable Joystick port */ +#define CTRL_XTALCLKDIS 0x00000002 /* 1 = disable crystal clock input */ +#define CTRL_PCICLKDIS 0x00000001 /* 1 = disable PCI clock distribution */ + + +#define STAT_INTR 0x80000000 /* wired or of all interrupt bits */ +#define CSTAT_5880_AC97_RST 0x20000000 /* CT5880 Reset bit */ +#define STAT_EN_SPDIF 0x00040000 /* enable S/PDIF circuitry */ +#define STAT_TS_SPDIF 0x00020000 /* test S/PDIF circuitry */ +#define STAT_TESTMODE 0x00010000 /* test ASIC */ +#define STAT_SYNC_ERR 0x00000100 /* 1 = codec sync error */ +#define STAT_VC 0x000000c0 /* CCB int source, 0=DAC1, 1=DAC2, 2=ADC, 3=undef */ +#define STAT_SH_VC 6 +#define STAT_MPWR 0x00000020 /* power level interrupt */ +#define STAT_MCCB 0x00000010 /* CCB int pending */ +#define STAT_UART 0x00000008 /* UART int pending */ +#define STAT_DAC1 0x00000004 /* DAC1 int pending */ +#define STAT_DAC2 0x00000002 /* DAC2 int pending */ +#define STAT_ADC 0x00000001 /* ADC int pending */ + +#define USTAT_RXINT 0x80 /* UART rx int pending */ +#define USTAT_TXINT 0x04 /* UART tx int pending */ +#define USTAT_TXRDY 0x02 /* UART tx ready */ +#define USTAT_RXRDY 0x01 /* UART rx ready */ + +#define UCTRL_RXINTEN 0x80 /* 1 = enable RX ints */ +#define UCTRL_TXINTEN 0x60 /* TX int enable field mask */ +#define UCTRL_ENA_TXINT 0x20 /* enable TX int */ +#define UCTRL_CNTRL 0x03 /* control field */ +#define UCTRL_CNTRL_SWR 0x03 /* software reset command */ + +/* sample rate converter */ +#define SRC_OKSTATE 1 + +#define SRC_RAMADDR_MASK 0xfe000000 +#define SRC_RAMADDR_SHIFT 25 +#define SRC_DAC1FREEZE (1UL << 21) +#define SRC_DAC2FREEZE (1UL << 20) +#define SRC_ADCFREEZE (1UL << 19) + + +#define SRC_WE 0x01000000 /* read/write control for SRC RAM */ +#define SRC_BUSY 0x00800000 /* SRC busy */ +#define SRC_DIS 0x00400000 /* 1 = disable SRC */ +#define SRC_DDAC1 0x00200000 /* 1 = disable accum update for DAC1 */ +#define SRC_DDAC2 0x00100000 /* 1 = disable accum update for DAC2 */ +#define SRC_DADC 0x00080000 /* 1 = disable accum update for ADC2 */ +#define SRC_CTLMASK 0x00780000 +#define SRC_RAMDATA_MASK 0x0000ffff +#define SRC_RAMDATA_SHIFT 0 + +#define SRCREG_ADC 0x78 +#define SRCREG_DAC1 0x70 +#define SRCREG_DAC2 0x74 +#define SRCREG_VOL_ADC 0x6c +#define SRCREG_VOL_DAC1 0x7c +#define SRCREG_VOL_DAC2 0x7e + +#define SRCREG_TRUNC_N 0x00 +#define SRCREG_INT_REGS 0x01 +#define SRCREG_ACCUM_FRAC 0x02 +#define SRCREG_VFREQ_FRAC 0x03 + +#define CODEC_PIRD 0x00800000 /* 0 = write AC97 register */ +#define CODEC_PIADD_MASK 0x007f0000 +#define CODEC_PIADD_SHIFT 16 +#define CODEC_PIDAT_MASK 0x0000ffff +#define CODEC_PIDAT_SHIFT 0 + +#define CODEC_RDY 0x80000000 /* AC97 read data valid */ +#define CODEC_WIP 0x40000000 /* AC97 write in progress */ +#define CODEC_PORD 0x00800000 /* 0 = write AC97 register */ +#define CODEC_POADD_MASK 0x007f0000 +#define CODEC_POADD_SHIFT 16 +#define CODEC_PODAT_MASK 0x0000ffff +#define CODEC_PODAT_SHIFT 0 + + +#define LEGACY_JFAST 0x80000000 /* fast joystick timing */ +#define LEGACY_FIRQ 0x01000000 /* force IRQ */ + +#define SCTRL_DACTEST 0x00400000 /* 1 = DAC test, test vector generation purposes */ +#define SCTRL_P2ENDINC 0x00380000 /* */ +#define SCTRL_SH_P2ENDINC 19 +#define SCTRL_P2STINC 0x00070000 /* */ +#define SCTRL_SH_P2STINC 16 +#define SCTRL_R1LOOPSEL 0x00008000 /* 0 = loop mode */ +#define SCTRL_P2LOOPSEL 0x00004000 /* 0 = loop mode */ +#define SCTRL_P1LOOPSEL 0x00002000 /* 0 = loop mode */ +#define SCTRL_P2PAUSE 0x00001000 /* 1 = pause mode */ +#define SCTRL_P1PAUSE 0x00000800 /* 1 = pause mode */ +#define SCTRL_R1INTEN 0x00000400 /* enable interrupt */ +#define SCTRL_P2INTEN 0x00000200 /* enable interrupt */ +#define SCTRL_P1INTEN 0x00000100 /* enable interrupt */ +#define SCTRL_P1SCTRLD 0x00000080 /* reload sample count register for DAC1 */ +#define SCTRL_P2DACSEN 0x00000040 /* 1 = DAC2 play back last sample when disabled */ +#define SCTRL_R1SEB 0x00000020 /* 1 = 16bit */ +#define SCTRL_R1SMB 0x00000010 /* 1 = stereo */ +#define SCTRL_R1FMT 0x00000030 /* format mask */ +#define SCTRL_SH_R1FMT 4 +#define SCTRL_P2SEB 0x00000008 /* 1 = 16bit */ +#define SCTRL_P2SMB 0x00000004 /* 1 = stereo */ +#define SCTRL_P2FMT 0x0000000c /* format mask */ +#define SCTRL_SH_P2FMT 2 +#define SCTRL_P1SEB 0x00000002 /* 1 = 16bit */ +#define SCTRL_P1SMB 0x00000001 /* 1 = stereo */ +#define SCTRL_P1FMT 0x00000003 /* format mask */ +#define SCTRL_SH_P1FMT 0 + + +/* misc stuff */ +#define POLL_COUNT 0x1000 +#define FMODE_DAC 4 /* slight misuse of mode_t */ + +/* MIDI buffer sizes */ + +#define MIDIINBUF 256 +#define MIDIOUTBUF 256 + +#define FMODE_MIDI_SHIFT 3 +#define FMODE_MIDI_READ (FMODE_READ << FMODE_MIDI_SHIFT) +#define FMODE_MIDI_WRITE (FMODE_WRITE << FMODE_MIDI_SHIFT) + +#define ES1371_MODULE_NAME "es1371" +#define PFX ES1371_MODULE_NAME ": " + +/* --------------------------------------------------------------------- */ + +struct es1371_state { + /* magic */ + unsigned int magic; + + /* list of es1371 devices */ + struct list_head devs; + + /* the corresponding pci_dev structure */ + struct pci_dev *dev; + + /* soundcore stuff */ + int dev_audio; + int dev_dac; + int dev_midi; + + /* hardware resources */ + unsigned long io; /* long for SPARC */ + unsigned int irq; + + /* PCI ID's */ + u16 vendor; + u16 device; + u8 rev; /* the chip revision */ + + /* options */ + int spdif_volume; /* S/PDIF output is enabled if != -1 */ + +#ifdef ES1371_DEBUG + /* debug /proc entry */ + struct proc_dir_entry *ps; +#endif /* ES1371_DEBUG */ + + struct ac97_codec *codec; + + /* wave stuff */ + unsigned ctrl; + unsigned sctrl; + unsigned dac1rate, dac2rate, adcrate; + + spinlock_t lock; + struct semaphore open_sem; + mode_t open_mode; + wait_queue_head_t open_wait; + + struct dmabuf { + void *rawbuf; + dma_addr_t dmaaddr; + unsigned buforder; + unsigned numfrag; + unsigned fragshift; + unsigned hwptr, swptr; + unsigned total_bytes; + int count; + unsigned error; /* over/underrun */ + wait_queue_head_t wait; + /* redundant, but makes calculations easier */ + unsigned fragsize; + unsigned dmasize; + unsigned fragsamples; + /* OSS stuff */ + unsigned mapped:1; + unsigned ready:1; + unsigned endcleared:1; + unsigned enabled:1; + unsigned ossfragshift; + int ossmaxfrags; + unsigned subdivision; + } dma_dac1, dma_dac2, dma_adc; + + /* midi stuff */ + struct { + unsigned ird, iwr, icnt; + unsigned ord, owr, ocnt; + wait_queue_head_t iwait; + wait_queue_head_t owait; + unsigned char ibuf[MIDIINBUF]; + unsigned char obuf[MIDIOUTBUF]; + } midi; + + struct gameport *gameport; + struct semaphore sem; +}; + +/* --------------------------------------------------------------------- */ + +static LIST_HEAD(devs); + +/* --------------------------------------------------------------------- */ + +static inline unsigned ld2(unsigned int x) +{ + unsigned r = 0; + + if (x >= 0x10000) { + x >>= 16; + r += 16; + } + if (x >= 0x100) { + x >>= 8; + r += 8; + } + if (x >= 0x10) { + x >>= 4; + r += 4; + } + if (x >= 4) { + x >>= 2; + r += 2; + } + if (x >= 2) + r++; + return r; +} + +/* --------------------------------------------------------------------- */ + +static unsigned wait_src_ready(struct es1371_state *s) +{ + unsigned int t, r; + + for (t = 0; t < POLL_COUNT; t++) { + if (!((r = inl(s->io + ES1371_REG_SRCONV)) & SRC_BUSY)) + return r; + udelay(1); + } + printk(KERN_DEBUG PFX "sample rate converter timeout r = 0x%08x\n", r); + return r; +} + +static unsigned src_read(struct es1371_state *s, unsigned reg) +{ + unsigned int temp,i,orig; + + /* wait for ready */ + temp = wait_src_ready (s); + + /* we can only access the SRC at certain times, make sure + we're allowed to before we read */ + + orig = temp; + /* expose the SRC state bits */ + outl ( (temp & SRC_CTLMASK) | (reg << SRC_RAMADDR_SHIFT) | 0x10000UL, + s->io + ES1371_REG_SRCONV); + + /* now, wait for busy and the correct time to read */ + temp = wait_src_ready (s); + + if ( (temp & 0x00870000UL ) != ( SRC_OKSTATE << 16 )){ + /* wait for the right state */ + for (i=0; i<POLL_COUNT; i++){ + temp = inl (s->io + ES1371_REG_SRCONV); + if ( (temp & 0x00870000UL ) == ( SRC_OKSTATE << 16 )) + break; + } + } + + /* hide the state bits */ + outl ((orig & SRC_CTLMASK) | (reg << SRC_RAMADDR_SHIFT), s->io + ES1371_REG_SRCONV); + return temp; + + +} + +static void src_write(struct es1371_state *s, unsigned reg, unsigned data) +{ + + unsigned int r; + + r = wait_src_ready(s) & (SRC_DIS | SRC_DDAC1 | SRC_DDAC2 | SRC_DADC); + r |= (reg << SRC_RAMADDR_SHIFT) & SRC_RAMADDR_MASK; + r |= (data << SRC_RAMDATA_SHIFT) & SRC_RAMDATA_MASK; + outl(r | SRC_WE, s->io + ES1371_REG_SRCONV); + +} + +/* --------------------------------------------------------------------- */ + +/* most of the following here is black magic */ +static void set_adc_rate(struct es1371_state *s, unsigned rate) +{ + unsigned long flags; + unsigned int n, truncm, freq; + + if (rate > 48000) + rate = 48000; + if (rate < 4000) + rate = 4000; + n = rate / 3000; + if ((1 << n) & ((1 << 15) | (1 << 13) | (1 << 11) | (1 << 9))) + n--; + truncm = (21 * n - 1) | 1; + freq = ((48000UL << 15) / rate) * n; + s->adcrate = (48000UL << 15) / (freq / n); + spin_lock_irqsave(&s->lock, flags); + if (rate >= 24000) { + if (truncm > 239) + truncm = 239; + src_write(s, SRCREG_ADC+SRCREG_TRUNC_N, + (((239 - truncm) >> 1) << 9) | (n << 4)); + } else { + if (truncm > 119) + truncm = 119; + src_write(s, SRCREG_ADC+SRCREG_TRUNC_N, + 0x8000 | (((119 - truncm) >> 1) << 9) | (n << 4)); + } + src_write(s, SRCREG_ADC+SRCREG_INT_REGS, + (src_read(s, SRCREG_ADC+SRCREG_INT_REGS) & 0x00ff) | + ((freq >> 5) & 0xfc00)); + src_write(s, SRCREG_ADC+SRCREG_VFREQ_FRAC, freq & 0x7fff); + src_write(s, SRCREG_VOL_ADC, n << 8); + src_write(s, SRCREG_VOL_ADC+1, n << 8); + spin_unlock_irqrestore(&s->lock, flags); +} + + +static void set_dac1_rate(struct es1371_state *s, unsigned rate) +{ + unsigned long flags; + unsigned int freq, r; + + if (rate > 48000) + rate = 48000; + if (rate < 4000) + rate = 4000; + freq = ((rate << 15) + 1500) / 3000; + s->dac1rate = (freq * 3000 + 16384) >> 15; + spin_lock_irqsave(&s->lock, flags); + r = (wait_src_ready(s) & (SRC_DIS | SRC_DDAC2 | SRC_DADC)) | SRC_DDAC1; + outl(r, s->io + ES1371_REG_SRCONV); + src_write(s, SRCREG_DAC1+SRCREG_INT_REGS, + (src_read(s, SRCREG_DAC1+SRCREG_INT_REGS) & 0x00ff) | + ((freq >> 5) & 0xfc00)); + src_write(s, SRCREG_DAC1+SRCREG_VFREQ_FRAC, freq & 0x7fff); + r = (wait_src_ready(s) & (SRC_DIS | SRC_DDAC2 | SRC_DADC)); + outl(r, s->io + ES1371_REG_SRCONV); + spin_unlock_irqrestore(&s->lock, flags); +} + +static void set_dac2_rate(struct es1371_state *s, unsigned rate) +{ + unsigned long flags; + unsigned int freq, r; + + if (rate > 48000) + rate = 48000; + if (rate < 4000) + rate = 4000; + freq = ((rate << 15) + 1500) / 3000; + s->dac2rate = (freq * 3000 + 16384) >> 15; + spin_lock_irqsave(&s->lock, flags); + r = (wait_src_ready(s) & (SRC_DIS | SRC_DDAC1 | SRC_DADC)) | SRC_DDAC2; + outl(r, s->io + ES1371_REG_SRCONV); + src_write(s, SRCREG_DAC2+SRCREG_INT_REGS, + (src_read(s, SRCREG_DAC2+SRCREG_INT_REGS) & 0x00ff) | + ((freq >> 5) & 0xfc00)); + src_write(s, SRCREG_DAC2+SRCREG_VFREQ_FRAC, freq & 0x7fff); + r = (wait_src_ready(s) & (SRC_DIS | SRC_DDAC1 | SRC_DADC)); + outl(r, s->io + ES1371_REG_SRCONV); + spin_unlock_irqrestore(&s->lock, flags); +} + +/* --------------------------------------------------------------------- */ + +static void __devinit src_init(struct es1371_state *s) +{ + unsigned int i; + + /* before we enable or disable the SRC we need + to wait for it to become ready */ + wait_src_ready(s); + + outl(SRC_DIS, s->io + ES1371_REG_SRCONV); + + for (i = 0; i < 0x80; i++) + src_write(s, i, 0); + + src_write(s, SRCREG_DAC1+SRCREG_TRUNC_N, 16 << 4); + src_write(s, SRCREG_DAC1+SRCREG_INT_REGS, 16 << 10); + src_write(s, SRCREG_DAC2+SRCREG_TRUNC_N, 16 << 4); + src_write(s, SRCREG_DAC2+SRCREG_INT_REGS, 16 << 10); + src_write(s, SRCREG_VOL_ADC, 1 << 12); + src_write(s, SRCREG_VOL_ADC+1, 1 << 12); + src_write(s, SRCREG_VOL_DAC1, 1 << 12); + src_write(s, SRCREG_VOL_DAC1+1, 1 << 12); + src_write(s, SRCREG_VOL_DAC2, 1 << 12); + src_write(s, SRCREG_VOL_DAC2+1, 1 << 12); + set_adc_rate(s, 22050); + set_dac1_rate(s, 22050); + set_dac2_rate(s, 22050); + + /* WARNING: + * enabling the sample rate converter without properly programming + * its parameters causes the chip to lock up (the SRC busy bit will + * be stuck high, and I've found no way to rectify this other than + * power cycle) + */ + wait_src_ready(s); + outl(0, s->io+ES1371_REG_SRCONV); +} + +/* --------------------------------------------------------------------- */ + +static void wrcodec(struct ac97_codec *codec, u8 addr, u16 data) +{ + struct es1371_state *s = (struct es1371_state *)codec->private_data; + unsigned long flags; + unsigned t, x; + + spin_lock_irqsave(&s->lock, flags); + for (t = 0; t < POLL_COUNT; t++) + if (!(inl(s->io+ES1371_REG_CODEC) & CODEC_WIP)) + break; + + /* save the current state for later */ + x = wait_src_ready(s); + + /* enable SRC state data in SRC mux */ + outl((x & (SRC_DIS | SRC_DDAC1 | SRC_DDAC2 | SRC_DADC)) | 0x00010000, + s->io+ES1371_REG_SRCONV); + + /* wait for not busy (state 0) first to avoid + transition states */ + for (t=0; t<POLL_COUNT; t++){ + if((inl(s->io+ES1371_REG_SRCONV) & 0x00870000) ==0 ) + break; + udelay(1); + } + + /* wait for a SAFE time to write addr/data and then do it, dammit */ + for (t=0; t<POLL_COUNT; t++){ + if((inl(s->io+ES1371_REG_SRCONV) & 0x00870000) ==0x00010000) + break; + udelay(1); + } + + outl(((addr << CODEC_POADD_SHIFT) & CODEC_POADD_MASK) | + ((data << CODEC_PODAT_SHIFT) & CODEC_PODAT_MASK), s->io+ES1371_REG_CODEC); + + /* restore SRC reg */ + wait_src_ready(s); + outl(x, s->io+ES1371_REG_SRCONV); + spin_unlock_irqrestore(&s->lock, flags); +} + +static u16 rdcodec(struct ac97_codec *codec, u8 addr) +{ + struct es1371_state *s = (struct es1371_state *)codec->private_data; + unsigned long flags; + unsigned t, x; + + spin_lock_irqsave(&s->lock, flags); + + /* wait for WIP to go away */ + for (t = 0; t < 0x1000; t++) + if (!(inl(s->io+ES1371_REG_CODEC) & CODEC_WIP)) + break; + + /* save the current state for later */ + x = (wait_src_ready(s) & (SRC_DIS | SRC_DDAC1 | SRC_DDAC2 | SRC_DADC)); + + /* enable SRC state data in SRC mux */ + outl( x | 0x00010000, + s->io+ES1371_REG_SRCONV); + + /* wait for not busy (state 0) first to avoid + transition states */ + for (t=0; t<POLL_COUNT; t++){ + if((inl(s->io+ES1371_REG_SRCONV) & 0x00870000) ==0 ) + break; + udelay(1); + } + + /* wait for a SAFE time to write addr/data and then do it, dammit */ + for (t=0; t<POLL_COUNT; t++){ + if((inl(s->io+ES1371_REG_SRCONV) & 0x00870000) ==0x00010000) + break; + udelay(1); + } + + outl(((addr << CODEC_POADD_SHIFT) & CODEC_POADD_MASK) | CODEC_PORD, s->io+ES1371_REG_CODEC); + /* restore SRC reg */ + wait_src_ready(s); + outl(x, s->io+ES1371_REG_SRCONV); + + /* wait for WIP again */ + for (t = 0; t < 0x1000; t++) + if (!(inl(s->io+ES1371_REG_CODEC) & CODEC_WIP)) + break; + + /* now wait for the stinkin' data (RDY) */ + for (t = 0; t < POLL_COUNT; t++) + if ((x = inl(s->io+ES1371_REG_CODEC)) & CODEC_RDY) + break; + + spin_unlock_irqrestore(&s->lock, flags); + return ((x & CODEC_PIDAT_MASK) >> CODEC_PIDAT_SHIFT); +} + +/* --------------------------------------------------------------------- */ + +static inline void stop_adc(struct es1371_state *s) +{ + unsigned long flags; + + spin_lock_irqsave(&s->lock, flags); + s->ctrl &= ~CTRL_ADC_EN; + outl(s->ctrl, s->io+ES1371_REG_CONTROL); + spin_unlock_irqrestore(&s->lock, flags); +} + +static inline void stop_dac1(struct es1371_state *s) +{ + unsigned long flags; + + spin_lock_irqsave(&s->lock, flags); + s->ctrl &= ~CTRL_DAC1_EN; + outl(s->ctrl, s->io+ES1371_REG_CONTROL); + spin_unlock_irqrestore(&s->lock, flags); +} + +static inline void stop_dac2(struct es1371_state *s) +{ + unsigned long flags; + + spin_lock_irqsave(&s->lock, flags); + s->ctrl &= ~CTRL_DAC2_EN; + outl(s->ctrl, s->io+ES1371_REG_CONTROL); + spin_unlock_irqrestore(&s->lock, flags); +} + +static void start_dac1(struct es1371_state *s) +{ + unsigned long flags; + unsigned fragremain, fshift; + + spin_lock_irqsave(&s->lock, flags); + if (!(s->ctrl & CTRL_DAC1_EN) && (s->dma_dac1.mapped || s->dma_dac1.count > 0) + && s->dma_dac1.ready) { + s->ctrl |= CTRL_DAC1_EN; + s->sctrl = (s->sctrl & ~(SCTRL_P1LOOPSEL | SCTRL_P1PAUSE | SCTRL_P1SCTRLD)) | SCTRL_P1INTEN; + outl(s->sctrl, s->io+ES1371_REG_SERIAL_CONTROL); + fragremain = ((- s->dma_dac1.hwptr) & (s->dma_dac1.fragsize-1)); + fshift = sample_shift[(s->sctrl & SCTRL_P1FMT) >> SCTRL_SH_P1FMT]; + if (fragremain < 2*fshift) + fragremain = s->dma_dac1.fragsize; + outl((fragremain >> fshift) - 1, s->io+ES1371_REG_DAC1_SCOUNT); + outl(s->ctrl, s->io+ES1371_REG_CONTROL); + outl((s->dma_dac1.fragsize >> fshift) - 1, s->io+ES1371_REG_DAC1_SCOUNT); + } + spin_unlock_irqrestore(&s->lock, flags); +} + +static void start_dac2(struct es1371_state *s) +{ + unsigned long flags; + unsigned fragremain, fshift; + + spin_lock_irqsave(&s->lock, flags); + if (!(s->ctrl & CTRL_DAC2_EN) && (s->dma_dac2.mapped || s->dma_dac2.count > 0) + && s->dma_dac2.ready) { + s->ctrl |= CTRL_DAC2_EN; + s->sctrl = (s->sctrl & ~(SCTRL_P2LOOPSEL | SCTRL_P2PAUSE | SCTRL_P2DACSEN | + SCTRL_P2ENDINC | SCTRL_P2STINC)) | SCTRL_P2INTEN | + (((s->sctrl & SCTRL_P2FMT) ? 2 : 1) << SCTRL_SH_P2ENDINC) | + (0 << SCTRL_SH_P2STINC); + outl(s->sctrl, s->io+ES1371_REG_SERIAL_CONTROL); + fragremain = ((- s->dma_dac2.hwptr) & (s->dma_dac2.fragsize-1)); + fshift = sample_shift[(s->sctrl & SCTRL_P2FMT) >> SCTRL_SH_P2FMT]; + if (fragremain < 2*fshift) + fragremain = s->dma_dac2.fragsize; + outl((fragremain >> fshift) - 1, s->io+ES1371_REG_DAC2_SCOUNT); + outl(s->ctrl, s->io+ES1371_REG_CONTROL); + outl((s->dma_dac2.fragsize >> fshift) - 1, s->io+ES1371_REG_DAC2_SCOUNT); + } + spin_unlock_irqrestore(&s->lock, flags); +} + +static void start_adc(struct es1371_state *s) +{ + unsigned long flags; + unsigned fragremain, fshift; + + spin_lock_irqsave(&s->lock, flags); + if (!(s->ctrl & CTRL_ADC_EN) && (s->dma_adc.mapped || s->dma_adc.count < (signed)(s->dma_adc.dmasize - 2*s->dma_adc.fragsize)) + && s->dma_adc.ready) { + s->ctrl |= CTRL_ADC_EN; + s->sctrl = (s->sctrl & ~SCTRL_R1LOOPSEL) | SCTRL_R1INTEN; + outl(s->sctrl, s->io+ES1371_REG_SERIAL_CONTROL); + fragremain = ((- s->dma_adc.hwptr) & (s->dma_adc.fragsize-1)); + fshift = sample_shift[(s->sctrl & SCTRL_R1FMT) >> SCTRL_SH_R1FMT]; + if (fragremain < 2*fshift) + fragremain = s->dma_adc.fragsize; + outl((fragremain >> fshift) - 1, s->io+ES1371_REG_ADC_SCOUNT); + outl(s->ctrl, s->io+ES1371_REG_CONTROL); + outl((s->dma_adc.fragsize >> fshift) - 1, s->io+ES1371_REG_ADC_SCOUNT); + } + spin_unlock_irqrestore(&s->lock, flags); +} + +/* --------------------------------------------------------------------- */ + +#define DMABUF_DEFAULTORDER (17-PAGE_SHIFT) +#define DMABUF_MINORDER 1 + + +static inline void dealloc_dmabuf(struct es1371_state *s, struct dmabuf *db) +{ + struct page *page, *pend; + + if (db->rawbuf) { + /* undo marking the pages as reserved */ + pend = virt_to_page(db->rawbuf + (PAGE_SIZE << db->buforder) - 1); + for (page = virt_to_page(db->rawbuf); page <= pend; page++) + ClearPageReserved(page); + pci_free_consistent(s->dev, PAGE_SIZE << db->buforder, db->rawbuf, db->dmaaddr); + } + db->rawbuf = NULL; + db->mapped = db->ready = 0; +} + +static int prog_dmabuf(struct es1371_state *s, struct dmabuf *db, unsigned rate, unsigned fmt, unsigned reg) +{ + int order; + unsigned bytepersec; + unsigned bufs; + struct page *page, *pend; + + db->hwptr = db->swptr = db->total_bytes = db->count = db->error = db->endcleared = 0; + if (!db->rawbuf) { + db->ready = db->mapped = 0; + for (order = DMABUF_DEFAULTORDER; order >= DMABUF_MINORDER; order--) + if ((db->rawbuf = pci_alloc_consistent(s->dev, PAGE_SIZE << order, &db->dmaaddr))) + break; + if (!db->rawbuf) + return -ENOMEM; + db->buforder = order; + /* now mark the pages as reserved; otherwise remap_pfn_range doesn't do what we want */ + pend = virt_to_page(db->rawbuf + (PAGE_SIZE << db->buforder) - 1); + for (page = virt_to_page(db->rawbuf); page <= pend; page++) + SetPageReserved(page); + } + fmt &= ES1371_FMT_MASK; + bytepersec = rate << sample_shift[fmt]; + bufs = PAGE_SIZE << db->buforder; + if (db->ossfragshift) { + if ((1000 << db->ossfragshift) < bytepersec) + db->fragshift = ld2(bytepersec/1000); + else + db->fragshift = db->ossfragshift; + } else { + db->fragshift = ld2(bytepersec/100/(db->subdivision ? db->subdivision : 1)); + if (db->fragshift < 3) + db->fragshift = 3; + } + db->numfrag = bufs >> db->fragshift; + while (db->numfrag < 4 && db->fragshift > 3) { + db->fragshift--; + db->numfrag = bufs >> db->fragshift; + } + db->fragsize = 1 << db->fragshift; + if (db->ossmaxfrags >= 4 && db->ossmaxfrags < db->numfrag) + db->numfrag = db->ossmaxfrags; + db->fragsamples = db->fragsize >> sample_shift[fmt]; + db->dmasize = db->numfrag << db->fragshift; + memset(db->rawbuf, (fmt & ES1371_FMT_S16) ? 0 : 0x80, db->dmasize); + outl((reg >> 8) & 15, s->io+ES1371_REG_MEMPAGE); + outl(db->dmaaddr, s->io+(reg & 0xff)); + outl((db->dmasize >> 2)-1, s->io+((reg + 4) & 0xff)); + db->enabled = 1; + db->ready = 1; + return 0; +} + +static inline int prog_dmabuf_adc(struct es1371_state *s) +{ + stop_adc(s); + return prog_dmabuf(s, &s->dma_adc, s->adcrate, (s->sctrl >> SCTRL_SH_R1FMT) & ES1371_FMT_MASK, + ES1371_REG_ADC_FRAMEADR); +} + +static inline int prog_dmabuf_dac2(struct es1371_state *s) +{ + stop_dac2(s); + return prog_dmabuf(s, &s->dma_dac2, s->dac2rate, (s->sctrl >> SCTRL_SH_P2FMT) & ES1371_FMT_MASK, + ES1371_REG_DAC2_FRAMEADR); +} + +static inline int prog_dmabuf_dac1(struct es1371_state *s) +{ + stop_dac1(s); + return prog_dmabuf(s, &s->dma_dac1, s->dac1rate, (s->sctrl >> SCTRL_SH_P1FMT) & ES1371_FMT_MASK, + ES1371_REG_DAC1_FRAMEADR); +} + +static inline unsigned get_hwptr(struct es1371_state *s, struct dmabuf *db, unsigned reg) +{ + unsigned hwptr, diff; + + outl((reg >> 8) & 15, s->io+ES1371_REG_MEMPAGE); + hwptr = (inl(s->io+(reg & 0xff)) >> 14) & 0x3fffc; + diff = (db->dmasize + hwptr - db->hwptr) % db->dmasize; + db->hwptr = hwptr; + return diff; +} + +static inline void clear_advance(void *buf, unsigned bsize, unsigned bptr, unsigned len, unsigned char c) +{ + if (bptr + len > bsize) { + unsigned x = bsize - bptr; + memset(((char *)buf) + bptr, c, x); + bptr = 0; + len -= x; + } + memset(((char *)buf) + bptr, c, len); +} + +/* call with spinlock held! */ +static void es1371_update_ptr(struct es1371_state *s) +{ + int diff; + + /* update ADC pointer */ + if (s->ctrl & CTRL_ADC_EN) { + diff = get_hwptr(s, &s->dma_adc, ES1371_REG_ADC_FRAMECNT); + s->dma_adc.total_bytes += diff; + s->dma_adc.count += diff; + if (s->dma_adc.count >= (signed)s->dma_adc.fragsize) + wake_up(&s->dma_adc.wait); + if (!s->dma_adc.mapped) { + if (s->dma_adc.count > (signed)(s->dma_adc.dmasize - ((3 * s->dma_adc.fragsize) >> 1))) { + s->ctrl &= ~CTRL_ADC_EN; + outl(s->ctrl, s->io+ES1371_REG_CONTROL); + s->dma_adc.error++; + } + } + } + /* update DAC1 pointer */ + if (s->ctrl & CTRL_DAC1_EN) { + diff = get_hwptr(s, &s->dma_dac1, ES1371_REG_DAC1_FRAMECNT); + s->dma_dac1.total_bytes += diff; + if (s->dma_dac1.mapped) { + s->dma_dac1.count += diff; + if (s->dma_dac1.count >= (signed)s->dma_dac1.fragsize) + wake_up(&s->dma_dac1.wait); + } else { + s->dma_dac1.count -= diff; + if (s->dma_dac1.count <= 0) { + s->ctrl &= ~CTRL_DAC1_EN; + outl(s->ctrl, s->io+ES1371_REG_CONTROL); + s->dma_dac1.error++; + } else if (s->dma_dac1.count <= (signed)s->dma_dac1.fragsize && !s->dma_dac1.endcleared) { + clear_advance(s->dma_dac1.rawbuf, s->dma_dac1.dmasize, s->dma_dac1.swptr, + s->dma_dac1.fragsize, (s->sctrl & SCTRL_P1SEB) ? 0 : 0x80); + s->dma_dac1.endcleared = 1; + } + if (s->dma_dac1.count + (signed)s->dma_dac1.fragsize <= (signed)s->dma_dac1.dmasize) + wake_up(&s->dma_dac1.wait); + } + } + /* update DAC2 pointer */ + if (s->ctrl & CTRL_DAC2_EN) { + diff = get_hwptr(s, &s->dma_dac2, ES1371_REG_DAC2_FRAMECNT); + s->dma_dac2.total_bytes += diff; + if (s->dma_dac2.mapped) { + s->dma_dac2.count += diff; + if (s->dma_dac2.count >= (signed)s->dma_dac2.fragsize) + wake_up(&s->dma_dac2.wait); + } else { + s->dma_dac2.count -= diff; + if (s->dma_dac2.count <= 0) { + s->ctrl &= ~CTRL_DAC2_EN; + outl(s->ctrl, s->io+ES1371_REG_CONTROL); + s->dma_dac2.error++; + } else if (s->dma_dac2.count <= (signed)s->dma_dac2.fragsize && !s->dma_dac2.endcleared) { + clear_advance(s->dma_dac2.rawbuf, s->dma_dac2.dmasize, s->dma_dac2.swptr, + s->dma_dac2.fragsize, (s->sctrl & SCTRL_P2SEB) ? 0 : 0x80); + s->dma_dac2.endcleared = 1; + } + if (s->dma_dac2.count + (signed)s->dma_dac2.fragsize <= (signed)s->dma_dac2.dmasize) + wake_up(&s->dma_dac2.wait); + } + } +} + +/* hold spinlock for the following! */ +static void es1371_handle_midi(struct es1371_state *s) +{ + unsigned char ch; + int wake; + + if (!(s->ctrl & CTRL_UART_EN)) + return; + wake = 0; + while (inb(s->io+ES1371_REG_UART_STATUS) & USTAT_RXRDY) { + ch = inb(s->io+ES1371_REG_UART_DATA); + if (s->midi.icnt < MIDIINBUF) { + s->midi.ibuf[s->midi.iwr] = ch; + s->midi.iwr = (s->midi.iwr + 1) % MIDIINBUF; + s->midi.icnt++; + } + wake = 1; + } + if (wake) + wake_up(&s->midi.iwait); + wake = 0; + while ((inb(s->io+ES1371_REG_UART_STATUS) & USTAT_TXRDY) && s->midi.ocnt > 0) { + outb(s->midi.obuf[s->midi.ord], s->io+ES1371_REG_UART_DATA); + s->midi.ord = (s->midi.ord + 1) % MIDIOUTBUF; + s->midi.ocnt--; + if (s->midi.ocnt < MIDIOUTBUF-16) + wake = 1; + } + if (wake) + wake_up(&s->midi.owait); + outb((s->midi.ocnt > 0) ? UCTRL_RXINTEN | UCTRL_ENA_TXINT : UCTRL_RXINTEN, s->io+ES1371_REG_UART_CONTROL); +} + +static irqreturn_t es1371_interrupt(int irq, void *dev_id, struct pt_regs *regs) +{ + struct es1371_state *s = (struct es1371_state *)dev_id; + unsigned int intsrc, sctl; + + /* fastpath out, to ease interrupt sharing */ + intsrc = inl(s->io+ES1371_REG_STATUS); + if (!(intsrc & 0x80000000)) + return IRQ_NONE; + spin_lock(&s->lock); + /* clear audio interrupts first */ + sctl = s->sctrl; + if (intsrc & STAT_ADC) + sctl &= ~SCTRL_R1INTEN; + if (intsrc & STAT_DAC1) + sctl &= ~SCTRL_P1INTEN; + if (intsrc & STAT_DAC2) + sctl &= ~SCTRL_P2INTEN; + outl(sctl, s->io+ES1371_REG_SERIAL_CONTROL); + outl(s->sctrl, s->io+ES1371_REG_SERIAL_CONTROL); + es1371_update_ptr(s); + es1371_handle_midi(s); + spin_unlock(&s->lock); + return IRQ_HANDLED; +} + +/* --------------------------------------------------------------------- */ + +static const char invalid_magic[] = KERN_CRIT PFX "invalid magic value\n"; + +#define VALIDATE_STATE(s) \ +({ \ + if (!(s) || (s)->magic != ES1371_MAGIC) { \ + printk(invalid_magic); \ + return -ENXIO; \ + } \ +}) + +/* --------------------------------------------------------------------- */ + +/* Conversion table for S/PDIF PCM volume emulation through the SRC */ +/* dB-linear table of DAC vol values; -0dB to -46.5dB with mute */ +static const unsigned short DACVolTable[101] = +{ + 0x1000, 0x0f2a, 0x0e60, 0x0da0, 0x0cea, 0x0c3e, 0x0b9a, 0x0aff, + 0x0a6d, 0x09e1, 0x095e, 0x08e1, 0x086a, 0x07fa, 0x078f, 0x072a, + 0x06cb, 0x0670, 0x061a, 0x05c9, 0x057b, 0x0532, 0x04ed, 0x04ab, + 0x046d, 0x0432, 0x03fa, 0x03c5, 0x0392, 0x0363, 0x0335, 0x030b, + 0x02e2, 0x02bc, 0x0297, 0x0275, 0x0254, 0x0235, 0x0217, 0x01fb, + 0x01e1, 0x01c8, 0x01b0, 0x0199, 0x0184, 0x0170, 0x015d, 0x014b, + 0x0139, 0x0129, 0x0119, 0x010b, 0x00fd, 0x00f0, 0x00e3, 0x00d7, + 0x00cc, 0x00c1, 0x00b7, 0x00ae, 0x00a5, 0x009c, 0x0094, 0x008c, + 0x0085, 0x007e, 0x0077, 0x0071, 0x006b, 0x0066, 0x0060, 0x005b, + 0x0057, 0x0052, 0x004e, 0x004a, 0x0046, 0x0042, 0x003f, 0x003c, + 0x0038, 0x0036, 0x0033, 0x0030, 0x002e, 0x002b, 0x0029, 0x0027, + 0x0025, 0x0023, 0x0021, 0x001f, 0x001e, 0x001c, 0x001b, 0x0019, + 0x0018, 0x0017, 0x0016, 0x0014, 0x0000 +}; + +/* + * when we are in S/PDIF mode, we want to disable any analog output so + * we filter the mixer ioctls + */ +static int mixdev_ioctl(struct ac97_codec *codec, unsigned int cmd, unsigned long arg) +{ + struct es1371_state *s = (struct es1371_state *)codec->private_data; + int val; + unsigned long flags; + unsigned int left, right; + + VALIDATE_STATE(s); + /* filter mixer ioctls to catch PCM and MASTER volume when in S/PDIF mode */ + if (s->spdif_volume == -1) + return codec->mixer_ioctl(codec, cmd, arg); + switch (cmd) { + case SOUND_MIXER_WRITE_VOLUME: + return 0; + + case SOUND_MIXER_WRITE_PCM: /* use SRC for PCM volume */ + if (get_user(val, (int __user *)arg)) + return -EFAULT; + right = ((val >> 8) & 0xff); + left = (val & 0xff); + if (right > 100) + right = 100; + if (left > 100) + left = 100; + s->spdif_volume = (right << 8) | left; + spin_lock_irqsave(&s->lock, flags); + src_write(s, SRCREG_VOL_DAC2, DACVolTable[100 - left]); + src_write(s, SRCREG_VOL_DAC2+1, DACVolTable[100 - right]); + spin_unlock_irqrestore(&s->lock, flags); + return 0; + + case SOUND_MIXER_READ_PCM: + return put_user(s->spdif_volume, (int __user *)arg); + } + return codec->mixer_ioctl(codec, cmd, arg); +} + +/* --------------------------------------------------------------------- */ + +/* + * AC97 Mixer Register to Connections mapping of the Concert 97 board + * + * AC97_MASTER_VOL_STEREO Line Out + * AC97_MASTER_VOL_MONO TAD Output + * AC97_PCBEEP_VOL none + * AC97_PHONE_VOL TAD Input (mono) + * AC97_MIC_VOL MIC Input (mono) + * AC97_LINEIN_VOL Line Input (stereo) + * AC97_CD_VOL CD Input (stereo) + * AC97_VIDEO_VOL none + * AC97_AUX_VOL Aux Input (stereo) + * AC97_PCMOUT_VOL Wave Output (stereo) + */ + +static int es1371_open_mixdev(struct inode *inode, struct file *file) +{ + int minor = iminor(inode); + struct list_head *list; + struct es1371_state *s; + + for (list = devs.next; ; list = list->next) { + if (list == &devs) + return -ENODEV; + s = list_entry(list, struct es1371_state, devs); + if (s->codec->dev_mixer == minor) + break; + } + VALIDATE_STATE(s); + file->private_data = s; + return nonseekable_open(inode, file); +} + +static int es1371_release_mixdev(struct inode *inode, struct file *file) +{ + struct es1371_state *s = (struct es1371_state *)file->private_data; + + VALIDATE_STATE(s); + return 0; +} + +static int es1371_ioctl_mixdev(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg) +{ + struct es1371_state *s = (struct es1371_state *)file->private_data; + struct ac97_codec *codec = s->codec; + + return mixdev_ioctl(codec, cmd, arg); +} + +static /*const*/ struct file_operations es1371_mixer_fops = { + .owner = THIS_MODULE, + .llseek = no_llseek, + .ioctl = es1371_ioctl_mixdev, + .open = es1371_open_mixdev, + .release = es1371_release_mixdev, +}; + +/* --------------------------------------------------------------------- */ + +static int drain_dac1(struct es1371_state *s, int nonblock) +{ + DECLARE_WAITQUEUE(wait, current); + unsigned long flags; + int count, tmo; + + if (s->dma_dac1.mapped || !s->dma_dac1.ready) + return 0; + add_wait_queue(&s->dma_dac1.wait, &wait); + for (;;) { + __set_current_state(TASK_INTERRUPTIBLE); + spin_lock_irqsave(&s->lock, flags); + count = s->dma_dac1.count; + spin_unlock_irqrestore(&s->lock, flags); + if (count <= 0) + break; + if (signal_pending(current)) + break; + if (nonblock) { + remove_wait_queue(&s->dma_dac1.wait, &wait); + set_current_state(TASK_RUNNING); + return -EBUSY; + } + tmo = 3 * HZ * (count + s->dma_dac1.fragsize) / 2 / s->dac1rate; + tmo >>= sample_shift[(s->sctrl & SCTRL_P1FMT) >> SCTRL_SH_P1FMT]; + if (!schedule_timeout(tmo + 1)) + DBG(printk(KERN_DEBUG PFX "dac1 dma timed out??\n");) + } + remove_wait_queue(&s->dma_dac1.wait, &wait); + set_current_state(TASK_RUNNING); + if (signal_pending(current)) + return -ERESTARTSYS; + return 0; +} + +static int drain_dac2(struct es1371_state *s, int nonblock) +{ + DECLARE_WAITQUEUE(wait, current); + unsigned long flags; + int count, tmo; + + if (s->dma_dac2.mapped || !s->dma_dac2.ready) + return 0; + add_wait_queue(&s->dma_dac2.wait, &wait); + for (;;) { + __set_current_state(TASK_UNINTERRUPTIBLE); + spin_lock_irqsave(&s->lock, flags); + count = s->dma_dac2.count; + spin_unlock_irqrestore(&s->lock, flags); + if (count <= 0) + break; + if (signal_pending(current)) + break; + if (nonblock) { + remove_wait_queue(&s->dma_dac2.wait, &wait); + set_current_state(TASK_RUNNING); + return -EBUSY; + } + tmo = 3 * HZ * (count + s->dma_dac2.fragsize) / 2 / s->dac2rate; + tmo >>= sample_shift[(s->sctrl & SCTRL_P2FMT) >> SCTRL_SH_P2FMT]; + if (!schedule_timeout(tmo + 1)) + DBG(printk(KERN_DEBUG PFX "dac2 dma timed out??\n");) + } + remove_wait_queue(&s->dma_dac2.wait, &wait); + set_current_state(TASK_RUNNING); + if (signal_pending(current)) + return -ERESTARTSYS; + return 0; +} + +/* --------------------------------------------------------------------- */ + +static ssize_t es1371_read(struct file *file, char __user *buffer, size_t count, loff_t *ppos) +{ + struct es1371_state *s = (struct es1371_state *)file->private_data; + DECLARE_WAITQUEUE(wait, current); + ssize_t ret = 0; + unsigned long flags; + unsigned swptr; + int cnt; + + VALIDATE_STATE(s); + if (s->dma_adc.mapped) + return -ENXIO; + if (!access_ok(VERIFY_WRITE, buffer, count)) + return -EFAULT; + down(&s->sem); + if (!s->dma_adc.ready && (ret = prog_dmabuf_adc(s))) + goto out2; + + add_wait_queue(&s->dma_adc.wait, &wait); + while (count > 0) { + spin_lock_irqsave(&s->lock, flags); + swptr = s->dma_adc.swptr; + cnt = s->dma_adc.dmasize-swptr; + if (s->dma_adc.count < cnt) + cnt = s->dma_adc.count; + if (cnt <= 0) + __set_current_state(TASK_INTERRUPTIBLE); + spin_unlock_irqrestore(&s->lock, flags); + if (cnt > count) + cnt = count; + if (cnt <= 0) { + if (s->dma_adc.enabled) + start_adc(s); + if (file->f_flags & O_NONBLOCK) { + if (!ret) + ret = -EAGAIN; + goto out; + } + up(&s->sem); + schedule(); + if (signal_pending(current)) { + if (!ret) + ret = -ERESTARTSYS; + goto out2; + } + down(&s->sem); + if (s->dma_adc.mapped) + { + ret = -ENXIO; + goto out; + } + continue; + } + if (copy_to_user(buffer, s->dma_adc.rawbuf + swptr, cnt)) { + if (!ret) + ret = -EFAULT; + goto out; + } + swptr = (swptr + cnt) % s->dma_adc.dmasize; + spin_lock_irqsave(&s->lock, flags); + s->dma_adc.swptr = swptr; + s->dma_adc.count -= cnt; + spin_unlock_irqrestore(&s->lock, flags); + count -= cnt; + buffer += cnt; + ret += cnt; + if (s->dma_adc.enabled) + start_adc(s); + } +out: + up(&s->sem); +out2: + remove_wait_queue(&s->dma_adc.wait, &wait); + set_current_state(TASK_RUNNING); + return ret; +} + +static ssize_t es1371_write(struct file *file, const char __user *buffer, size_t count, loff_t *ppos) +{ + struct es1371_state *s = (struct es1371_state *)file->private_data; + DECLARE_WAITQUEUE(wait, current); + ssize_t ret; + unsigned long flags; + unsigned swptr; + int cnt; + + VALIDATE_STATE(s); + if (s->dma_dac2.mapped) + return -ENXIO; + if (!access_ok(VERIFY_READ, buffer, count)) + return -EFAULT; + down(&s->sem); + if (!s->dma_dac2.ready && (ret = prog_dmabuf_dac2(s))) + goto out3; + ret = 0; + add_wait_queue(&s->dma_dac2.wait, &wait); + while (count > 0) { + spin_lock_irqsave(&s->lock, flags); + if (s->dma_dac2.count < 0) { + s->dma_dac2.count = 0; + s->dma_dac2.swptr = s->dma_dac2.hwptr; + } + swptr = s->dma_dac2.swptr; + cnt = s->dma_dac2.dmasize-swptr; + if (s->dma_dac2.count + cnt > s->dma_dac2.dmasize) + cnt = s->dma_dac2.dmasize - s->dma_dac2.count; + if (cnt <= 0) + __set_current_state(TASK_INTERRUPTIBLE); + spin_unlock_irqrestore(&s->lock, flags); + if (cnt > count) + cnt = count; + if (cnt <= 0) { + if (s->dma_dac2.enabled) + start_dac2(s); + if (file->f_flags & O_NONBLOCK) { + if (!ret) + ret = -EAGAIN; + goto out; + } + up(&s->sem); + schedule(); + if (signal_pending(current)) { + if (!ret) + ret = -ERESTARTSYS; + goto out2; + } + down(&s->sem); + if (s->dma_dac2.mapped) + { + ret = -ENXIO; + goto out; + } + continue; + } + if (copy_from_user(s->dma_dac2.rawbuf + swptr, buffer, cnt)) { + if (!ret) + ret = -EFAULT; + goto out; + } + swptr = (swptr + cnt) % s->dma_dac2.dmasize; + spin_lock_irqsave(&s->lock, flags); + s->dma_dac2.swptr = swptr; + s->dma_dac2.count += cnt; + s->dma_dac2.endcleared = 0; + spin_unlock_irqrestore(&s->lock, flags); + count -= cnt; + buffer += cnt; + ret += cnt; + if (s->dma_dac2.enabled) + start_dac2(s); + } +out: + up(&s->sem); +out2: + remove_wait_queue(&s->dma_dac2.wait, &wait); +out3: + set_current_state(TASK_RUNNING); + return ret; +} + +/* No kernel lock - we have our own spinlock */ +static unsigned int es1371_poll(struct file *file, struct poll_table_struct *wait) +{ + struct es1371_state *s = (struct es1371_state *)file->private_data; + unsigned long flags; + unsigned int mask = 0; + + VALIDATE_STATE(s); + if (file->f_mode & FMODE_WRITE) { + if (!s->dma_dac2.ready && prog_dmabuf_dac2(s)) + return 0; + poll_wait(file, &s->dma_dac2.wait, wait); + } + if (file->f_mode & FMODE_READ) { + if (!s->dma_adc.ready && prog_dmabuf_adc(s)) + return 0; + poll_wait(file, &s->dma_adc.wait, wait); + } + spin_lock_irqsave(&s->lock, flags); + es1371_update_ptr(s); + if (file->f_mode & FMODE_READ) { + if (s->dma_adc.count >= (signed)s->dma_adc.fragsize) + mask |= POLLIN | POLLRDNORM; + } + if (file->f_mode & FMODE_WRITE) { + if (s->dma_dac2.mapped) { + if (s->dma_dac2.count >= (signed)s->dma_dac2.fragsize) + mask |= POLLOUT | POLLWRNORM; + } else { + if ((signed)s->dma_dac2.dmasize >= s->dma_dac2.count + (signed)s->dma_dac2.fragsize) + mask |= POLLOUT | POLLWRNORM; + } + } + spin_unlock_irqrestore(&s->lock, flags); + return mask; +} + +static int es1371_mmap(struct file *file, struct vm_area_struct *vma) +{ + struct es1371_state *s = (struct es1371_state *)file->private_data; + struct dmabuf *db; + int ret = 0; + unsigned long size; + + VALIDATE_STATE(s); + lock_kernel(); + down(&s->sem); + + if (vma->vm_flags & VM_WRITE) { + if ((ret = prog_dmabuf_dac2(s)) != 0) { + goto out; + } + db = &s->dma_dac2; + } else if (vma->vm_flags & VM_READ) { + if ((ret = prog_dmabuf_adc(s)) != 0) { + goto out; + } + db = &s->dma_adc; + } else { + ret = -EINVAL; + goto out; + } + if (vma->vm_pgoff != 0) { + ret = -EINVAL; + goto out; + } + size = vma->vm_end - vma->vm_start; + if (size > (PAGE_SIZE << db->buforder)) { + ret = -EINVAL; + goto out; + } + if (remap_pfn_range(vma, vma->vm_start, + virt_to_phys(db->rawbuf) >> PAGE_SHIFT, + size, vma->vm_page_prot)) { + ret = -EAGAIN; + goto out; + } + db->mapped = 1; +out: + up(&s->sem); + unlock_kernel(); + return ret; +} + +static int es1371_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg) +{ + struct es1371_state *s = (struct es1371_state *)file->private_data; + unsigned long flags; + audio_buf_info abinfo; + count_info cinfo; + int count; + int val, mapped, ret; + void __user *argp = (void __user *)arg; + int __user *p = argp; + + VALIDATE_STATE(s); + mapped = ((file->f_mode & FMODE_WRITE) && s->dma_dac2.mapped) || + ((file->f_mode & FMODE_READ) && s->dma_adc.mapped); + switch (cmd) { + case OSS_GETVERSION: + return put_user(SOUND_VERSION, p); + + case SNDCTL_DSP_SYNC: + if (file->f_mode & FMODE_WRITE) + return drain_dac2(s, 0/*file->f_flags & O_NONBLOCK*/); + return 0; + + case SNDCTL_DSP_SETDUPLEX: + return 0; + + case SNDCTL_DSP_GETCAPS: + return put_user(DSP_CAP_DUPLEX | DSP_CAP_REALTIME | DSP_CAP_TRIGGER | DSP_CAP_MMAP, p); + + case SNDCTL_DSP_RESET: + if (file->f_mode & FMODE_WRITE) { + stop_dac2(s); + synchronize_irq(s->irq); + s->dma_dac2.swptr = s->dma_dac2.hwptr = s->dma_dac2.count = s->dma_dac2.total_bytes = 0; + } + if (file->f_mode & FMODE_READ) { + stop_adc(s); + synchronize_irq(s->irq); + s->dma_adc.swptr = s->dma_adc.hwptr = s->dma_adc.count = s->dma_adc.total_bytes = 0; + } + return 0; + + case SNDCTL_DSP_SPEED: + if (get_user(val, p)) + return -EFAULT; + if (val >= 0) { + if (file->f_mode & FMODE_READ) { + stop_adc(s); + s->dma_adc.ready = 0; + set_adc_rate(s, val); + } + if (file->f_mode & FMODE_WRITE) { + stop_dac2(s); + s->dma_dac2.ready = 0; + set_dac2_rate(s, val); + } + } + return put_user((file->f_mode & FMODE_READ) ? s->adcrate : s->dac2rate, p); + + case SNDCTL_DSP_STEREO: + if (get_user(val, p)) + return -EFAULT; + if (file->f_mode & FMODE_READ) { + stop_adc(s); + s->dma_adc.ready = 0; + spin_lock_irqsave(&s->lock, flags); + if (val) + s->sctrl |= SCTRL_R1SMB; + else + s->sctrl &= ~SCTRL_R1SMB; + outl(s->sctrl, s->io+ES1371_REG_SERIAL_CONTROL); + spin_unlock_irqrestore(&s->lock, flags); + } + if (file->f_mode & FMODE_WRITE) { + stop_dac2(s); + s->dma_dac2.ready = 0; + spin_lock_irqsave(&s->lock, flags); + if (val) + s->sctrl |= SCTRL_P2SMB; + else + s->sctrl &= ~SCTRL_P2SMB; + outl(s->sctrl, s->io+ES1371_REG_SERIAL_CONTROL); + spin_unlock_irqrestore(&s->lock, flags); + } + return 0; + + case SNDCTL_DSP_CHANNELS: + if (get_user(val, p)) + return -EFAULT; + if (val != 0) { + if (file->f_mode & FMODE_READ) { + stop_adc(s); + s->dma_adc.ready = 0; + spin_lock_irqsave(&s->lock, flags); + if (val >= 2) + s->sctrl |= SCTRL_R1SMB; + else + s->sctrl &= ~SCTRL_R1SMB; + outl(s->sctrl, s->io+ES1371_REG_SERIAL_CONTROL); + spin_unlock_irqrestore(&s->lock, flags); + } + if (file->f_mode & FMODE_WRITE) { + stop_dac2(s); + s->dma_dac2.ready = 0; + spin_lock_irqsave(&s->lock, flags); + if (val >= 2) + s->sctrl |= SCTRL_P2SMB; + else + s->sctrl &= ~SCTRL_P2SMB; + outl(s->sctrl, s->io+ES1371_REG_SERIAL_CONTROL); + spin_unlock_irqrestore(&s->lock, flags); + } + } + return put_user((s->sctrl & ((file->f_mode & FMODE_READ) ? SCTRL_R1SMB : SCTRL_P2SMB)) ? 2 : 1, p); + + case SNDCTL_DSP_GETFMTS: /* Returns a mask */ + return put_user(AFMT_S16_LE|AFMT_U8, p); + + case SNDCTL_DSP_SETFMT: /* Selects ONE fmt*/ + if (get_user(val, p)) + return -EFAULT; + if (val != AFMT_QUERY) { + if (file->f_mode & FMODE_READ) { + stop_adc(s); + s->dma_adc.ready = 0; + spin_lock_irqsave(&s->lock, flags); + if (val == AFMT_S16_LE) + s->sctrl |= SCTRL_R1SEB; + else + s->sctrl &= ~SCTRL_R1SEB; + outl(s->sctrl, s->io+ES1371_REG_SERIAL_CONTROL); + spin_unlock_irqrestore(&s->lock, flags); + } + if (file->f_mode & FMODE_WRITE) { + stop_dac2(s); + s->dma_dac2.ready = 0; + spin_lock_irqsave(&s->lock, flags); + if (val == AFMT_S16_LE) + s->sctrl |= SCTRL_P2SEB; + else + s->sctrl &= ~SCTRL_P2SEB; + outl(s->sctrl, s->io+ES1371_REG_SERIAL_CONTROL); + spin_unlock_irqrestore(&s->lock, flags); + } + } + return put_user((s->sctrl & ((file->f_mode & FMODE_READ) ? SCTRL_R1SEB : SCTRL_P2SEB)) ? + AFMT_S16_LE : AFMT_U8, p); + + case SNDCTL_DSP_POST: + return 0; + + case SNDCTL_DSP_GETTRIGGER: + val = 0; + if (file->f_mode & FMODE_READ && s->ctrl & CTRL_ADC_EN) + val |= PCM_ENABLE_INPUT; + if (file->f_mode & FMODE_WRITE && s->ctrl & CTRL_DAC2_EN) + val |= PCM_ENABLE_OUTPUT; + return put_user(val, p); + + case SNDCTL_DSP_SETTRIGGER: + if (get_user(val, p)) + return -EFAULT; + if (file->f_mode & FMODE_READ) { + if (val & PCM_ENABLE_INPUT) { + if (!s->dma_adc.ready && (ret = prog_dmabuf_adc(s))) + return ret; + s->dma_adc.enabled = 1; + start_adc(s); + } else { + s->dma_adc.enabled = 0; + stop_adc(s); + } + } + if (file->f_mode & FMODE_WRITE) { + if (val & PCM_ENABLE_OUTPUT) { + if (!s->dma_dac2.ready && (ret = prog_dmabuf_dac2(s))) + return ret; + s->dma_dac2.enabled = 1; + start_dac2(s); + } else { + s->dma_dac2.enabled = 0; + stop_dac2(s); + } + } + return 0; + + case SNDCTL_DSP_GETOSPACE: + if (!(file->f_mode & FMODE_WRITE)) + return -EINVAL; + if (!s->dma_dac2.ready && (val = prog_dmabuf_dac2(s)) != 0) + return val; + spin_lock_irqsave(&s->lock, flags); + es1371_update_ptr(s); + abinfo.fragsize = s->dma_dac2.fragsize; + count = s->dma_dac2.count; + if (count < 0) + count = 0; + abinfo.bytes = s->dma_dac2.dmasize - count; + abinfo.fragstotal = s->dma_dac2.numfrag; + abinfo.fragments = abinfo.bytes >> s->dma_dac2.fragshift; + spin_unlock_irqrestore(&s->lock, flags); + return copy_to_user(argp, &abinfo, sizeof(abinfo)) ? -EFAULT : 0; + + case SNDCTL_DSP_GETISPACE: + if (!(file->f_mode & FMODE_READ)) + return -EINVAL; + if (!s->dma_adc.ready && (val = prog_dmabuf_adc(s)) != 0) + return val; + spin_lock_irqsave(&s->lock, flags); + es1371_update_ptr(s); + abinfo.fragsize = s->dma_adc.fragsize; + count = s->dma_adc.count; + if (count < 0) + count = 0; + abinfo.bytes = count; + abinfo.fragstotal = s->dma_adc.numfrag; + abinfo.fragments = abinfo.bytes >> s->dma_adc.fragshift; + spin_unlock_irqrestore(&s->lock, flags); + return copy_to_user(argp, &abinfo, sizeof(abinfo)) ? -EFAULT : 0; + + case SNDCTL_DSP_NONBLOCK: + file->f_flags |= O_NONBLOCK; + return 0; + + case SNDCTL_DSP_GETODELAY: + if (!(file->f_mode & FMODE_WRITE)) + return -EINVAL; + if (!s->dma_dac2.ready && (val = prog_dmabuf_dac2(s)) != 0) + return val; + spin_lock_irqsave(&s->lock, flags); + es1371_update_ptr(s); + count = s->dma_dac2.count; + spin_unlock_irqrestore(&s->lock, flags); + if (count < 0) + count = 0; + return put_user(count, p); + + case SNDCTL_DSP_GETIPTR: + if (!(file->f_mode & FMODE_READ)) + return -EINVAL; + if (!s->dma_adc.ready && (val = prog_dmabuf_adc(s)) != 0) + return val; + spin_lock_irqsave(&s->lock, flags); + es1371_update_ptr(s); + cinfo.bytes = s->dma_adc.total_bytes; + count = s->dma_adc.count; + if (count < 0) + count = 0; + cinfo.blocks = count >> s->dma_adc.fragshift; + cinfo.ptr = s->dma_adc.hwptr; + if (s->dma_adc.mapped) + s->dma_adc.count &= s->dma_adc.fragsize-1; + spin_unlock_irqrestore(&s->lock, flags); + if (copy_to_user(argp, &cinfo, sizeof(cinfo))) + return -EFAULT; + return 0; + + case SNDCTL_DSP_GETOPTR: + if (!(file->f_mode & FMODE_WRITE)) + return -EINVAL; + if (!s->dma_dac2.ready && (val = prog_dmabuf_dac2(s)) != 0) + return val; + spin_lock_irqsave(&s->lock, flags); + es1371_update_ptr(s); + cinfo.bytes = s->dma_dac2.total_bytes; + count = s->dma_dac2.count; + if (count < 0) + count = 0; + cinfo.blocks = count >> s->dma_dac2.fragshift; + cinfo.ptr = s->dma_dac2.hwptr; + if (s->dma_dac2.mapped) + s->dma_dac2.count &= s->dma_dac2.fragsize-1; + spin_unlock_irqrestore(&s->lock, flags); + if (copy_to_user(argp, &cinfo, sizeof(cinfo))) + return -EFAULT; + return 0; + + case SNDCTL_DSP_GETBLKSIZE: + if (file->f_mode & FMODE_WRITE) { + if ((val = prog_dmabuf_dac2(s))) + return val; + return put_user(s->dma_dac2.fragsize, p); + } + if ((val = prog_dmabuf_adc(s))) + return val; + return put_user(s->dma_adc.fragsize, p); + + case SNDCTL_DSP_SETFRAGMENT: + if (get_user(val, p)) + return -EFAULT; + if (file->f_mode & FMODE_READ) { + s->dma_adc.ossfragshift = val & 0xffff; + s->dma_adc.ossmaxfrags = (val >> 16) & 0xffff; + if (s->dma_adc.ossfragshift < 4) + s->dma_adc.ossfragshift = 4; + if (s->dma_adc.ossfragshift > 15) + s->dma_adc.ossfragshift = 15; + if (s->dma_adc.ossmaxfrags < 4) + s->dma_adc.ossmaxfrags = 4; + } + if (file->f_mode & FMODE_WRITE) { + s->dma_dac2.ossfragshift = val & 0xffff; + s->dma_dac2.ossmaxfrags = (val >> 16) & 0xffff; + if (s->dma_dac2.ossfragshift < 4) + s->dma_dac2.ossfragshift = 4; + if (s->dma_dac2.ossfragshift > 15) + s->dma_dac2.ossfragshift = 15; + if (s->dma_dac2.ossmaxfrags < 4) + s->dma_dac2.ossmaxfrags = 4; + } + return 0; + + case SNDCTL_DSP_SUBDIVIDE: + if ((file->f_mode & FMODE_READ && s->dma_adc.subdivision) || + (file->f_mode & FMODE_WRITE && s->dma_dac2.subdivision)) + return -EINVAL; + if (get_user(val, p)) + return -EFAULT; + if (val != 1 && val != 2 && val != 4) + return -EINVAL; + if (file->f_mode & FMODE_READ) + s->dma_adc.subdivision = val; + if (file->f_mode & FMODE_WRITE) + s->dma_dac2.subdivision = val; + return 0; + + case SOUND_PCM_READ_RATE: + return put_user((file->f_mode & FMODE_READ) ? s->adcrate : s->dac2rate, p); + + case SOUND_PCM_READ_CHANNELS: + return put_user((s->sctrl & ((file->f_mode & FMODE_READ) ? SCTRL_R1SMB : SCTRL_P2SMB)) ? 2 : 1, p); + + case SOUND_PCM_READ_BITS: + return put_user((s->sctrl & ((file->f_mode & FMODE_READ) ? SCTRL_R1SEB : SCTRL_P2SEB)) ? 16 : 8, p); + + case SOUND_PCM_WRITE_FILTER: + case SNDCTL_DSP_SETSYNCRO: + case SOUND_PCM_READ_FILTER: + return -EINVAL; + + } + return mixdev_ioctl(s->codec, cmd, arg); +} + +static int es1371_open(struct inode *inode, struct file *file) +{ + int minor = iminor(inode); + DECLARE_WAITQUEUE(wait, current); + unsigned long flags; + struct list_head *list; + struct es1371_state *s; + + for (list = devs.next; ; list = list->next) { + if (list == &devs) + return -ENODEV; + s = list_entry(list, struct es1371_state, devs); + if (!((s->dev_audio ^ minor) & ~0xf)) + break; + } + VALIDATE_STATE(s); + file->private_data = s; + /* wait for device to become free */ + down(&s->open_sem); + while (s->open_mode & file->f_mode) { + if (file->f_flags & O_NONBLOCK) { + up(&s->open_sem); + return -EBUSY; + } + add_wait_queue(&s->open_wait, &wait); + __set_current_state(TASK_INTERRUPTIBLE); + up(&s->open_sem); + schedule(); + remove_wait_queue(&s->open_wait, &wait); + set_current_state(TASK_RUNNING); + if (signal_pending(current)) + return -ERESTARTSYS; + down(&s->open_sem); + } + if (file->f_mode & FMODE_READ) { + s->dma_adc.ossfragshift = s->dma_adc.ossmaxfrags = s->dma_adc.subdivision = 0; + s->dma_adc.enabled = 1; + set_adc_rate(s, 8000); + } + if (file->f_mode & FMODE_WRITE) { + s->dma_dac2.ossfragshift = s->dma_dac2.ossmaxfrags = s->dma_dac2.subdivision = 0; + s->dma_dac2.enabled = 1; + set_dac2_rate(s, 8000); + } + spin_lock_irqsave(&s->lock, flags); + if (file->f_mode & FMODE_READ) { + s->sctrl &= ~SCTRL_R1FMT; + if ((minor & 0xf) == SND_DEV_DSP16) + s->sctrl |= ES1371_FMT_S16_MONO << SCTRL_SH_R1FMT; + else + s->sctrl |= ES1371_FMT_U8_MONO << SCTRL_SH_R1FMT; + } + if (file->f_mode & FMODE_WRITE) { + s->sctrl &= ~SCTRL_P2FMT; + if ((minor & 0xf) == SND_DEV_DSP16) + s->sctrl |= ES1371_FMT_S16_MONO << SCTRL_SH_P2FMT; + else + s->sctrl |= ES1371_FMT_U8_MONO << SCTRL_SH_P2FMT; + } + outl(s->sctrl, s->io+ES1371_REG_SERIAL_CONTROL); + spin_unlock_irqrestore(&s->lock, flags); + s->open_mode |= file->f_mode & (FMODE_READ | FMODE_WRITE); + up(&s->open_sem); + init_MUTEX(&s->sem); + return nonseekable_open(inode, file); +} + +static int es1371_release(struct inode *inode, struct file *file) +{ + struct es1371_state *s = (struct es1371_state *)file->private_data; + + VALIDATE_STATE(s); + lock_kernel(); + if (file->f_mode & FMODE_WRITE) + drain_dac2(s, file->f_flags & O_NONBLOCK); + down(&s->open_sem); + if (file->f_mode & FMODE_WRITE) { + stop_dac2(s); + dealloc_dmabuf(s, &s->dma_dac2); + } + if (file->f_mode & FMODE_READ) { + stop_adc(s); + dealloc_dmabuf(s, &s->dma_adc); + } + s->open_mode &= ~(file->f_mode & (FMODE_READ|FMODE_WRITE)); + up(&s->open_sem); + wake_up(&s->open_wait); + unlock_kernel(); + return 0; +} + +static /*const*/ struct file_operations es1371_audio_fops = { + .owner = THIS_MODULE, + .llseek = no_llseek, + .read = es1371_read, + .write = es1371_write, + .poll = es1371_poll, + .ioctl = es1371_ioctl, + .mmap = es1371_mmap, + .open = es1371_open, + .release = es1371_release, +}; + +/* --------------------------------------------------------------------- */ + +static ssize_t es1371_write_dac(struct file *file, const char __user *buffer, size_t count, loff_t *ppos) +{ + struct es1371_state *s = (struct es1371_state *)file->private_data; + DECLARE_WAITQUEUE(wait, current); + ssize_t ret = 0; + unsigned long flags; + unsigned swptr; + int cnt; + + VALIDATE_STATE(s); + if (s->dma_dac1.mapped) + return -ENXIO; + if (!s->dma_dac1.ready && (ret = prog_dmabuf_dac1(s))) + return ret; + if (!access_ok(VERIFY_READ, buffer, count)) + return -EFAULT; + add_wait_queue(&s->dma_dac1.wait, &wait); + while (count > 0) { + spin_lock_irqsave(&s->lock, flags); + if (s->dma_dac1.count < 0) { + s->dma_dac1.count = 0; + s->dma_dac1.swptr = s->dma_dac1.hwptr; + } + swptr = s->dma_dac1.swptr; + cnt = s->dma_dac1.dmasize-swptr; + if (s->dma_dac1.count + cnt > s->dma_dac1.dmasize) + cnt = s->dma_dac1.dmasize - s->dma_dac1.count; + if (cnt <= 0) + __set_current_state(TASK_INTERRUPTIBLE); + spin_unlock_irqrestore(&s->lock, flags); + if (cnt > count) + cnt = count; + if (cnt <= 0) { + if (s->dma_dac1.enabled) + start_dac1(s); + if (file->f_flags & O_NONBLOCK) { + if (!ret) + ret = -EAGAIN; + break; + } + schedule(); + if (signal_pending(current)) { + if (!ret) + ret = -ERESTARTSYS; + break; + } + continue; + } + if (copy_from_user(s->dma_dac1.rawbuf + swptr, buffer, cnt)) { + if (!ret) + ret = -EFAULT; + break; + } + swptr = (swptr + cnt) % s->dma_dac1.dmasize; + spin_lock_irqsave(&s->lock, flags); + s->dma_dac1.swptr = swptr; + s->dma_dac1.count += cnt; + s->dma_dac1.endcleared = 0; + spin_unlock_irqrestore(&s->lock, flags); + count -= cnt; + buffer += cnt; + ret += cnt; + if (s->dma_dac1.enabled) + start_dac1(s); + } + remove_wait_queue(&s->dma_dac1.wait, &wait); + set_current_state(TASK_RUNNING); + return ret; +} + +/* No kernel lock - we have our own spinlock */ +static unsigned int es1371_poll_dac(struct file *file, struct poll_table_struct *wait) +{ + struct es1371_state *s = (struct es1371_state *)file->private_data; + unsigned long flags; + unsigned int mask = 0; + + VALIDATE_STATE(s); + if (!s->dma_dac1.ready && prog_dmabuf_dac1(s)) + return 0; + poll_wait(file, &s->dma_dac1.wait, wait); + spin_lock_irqsave(&s->lock, flags); + es1371_update_ptr(s); + if (s->dma_dac1.mapped) { + if (s->dma_dac1.count >= (signed)s->dma_dac1.fragsize) + mask |= POLLOUT | POLLWRNORM; + } else { + if ((signed)s->dma_dac1.dmasize >= s->dma_dac1.count + (signed)s->dma_dac1.fragsize) + mask |= POLLOUT | POLLWRNORM; + } + spin_unlock_irqrestore(&s->lock, flags); + return mask; +} + +static int es1371_mmap_dac(struct file *file, struct vm_area_struct *vma) +{ + struct es1371_state *s = (struct es1371_state *)file->private_data; + int ret; + unsigned long size; + + VALIDATE_STATE(s); + if (!(vma->vm_flags & VM_WRITE)) + return -EINVAL; + lock_kernel(); + if ((ret = prog_dmabuf_dac1(s)) != 0) + goto out; + ret = -EINVAL; + if (vma->vm_pgoff != 0) + goto out; + size = vma->vm_end - vma->vm_start; + if (size > (PAGE_SIZE << s->dma_dac1.buforder)) + goto out; + ret = -EAGAIN; + if (remap_pfn_range(vma, vma->vm_start, + virt_to_phys(s->dma_dac1.rawbuf) >> PAGE_SHIFT, + size, vma->vm_page_prot)) + goto out; + s->dma_dac1.mapped = 1; + ret = 0; +out: + unlock_kernel(); + return ret; +} + +static int es1371_ioctl_dac(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg) +{ + struct es1371_state *s = (struct es1371_state *)file->private_data; + unsigned long flags; + audio_buf_info abinfo; + count_info cinfo; + int count; + int val, ret; + int __user *p = (int __user *)arg; + + VALIDATE_STATE(s); + switch (cmd) { + case OSS_GETVERSION: + return put_user(SOUND_VERSION, p); + + case SNDCTL_DSP_SYNC: + return drain_dac1(s, 0/*file->f_flags & O_NONBLOCK*/); + + case SNDCTL_DSP_SETDUPLEX: + return -EINVAL; + + case SNDCTL_DSP_GETCAPS: + return put_user(DSP_CAP_REALTIME | DSP_CAP_TRIGGER | DSP_CAP_MMAP, p); + + case SNDCTL_DSP_RESET: + stop_dac1(s); + synchronize_irq(s->irq); + s->dma_dac1.swptr = s->dma_dac1.hwptr = s->dma_dac1.count = s->dma_dac1.total_bytes = 0; + return 0; + + case SNDCTL_DSP_SPEED: + if (get_user(val, p)) + return -EFAULT; + if (val >= 0) { + stop_dac1(s); + s->dma_dac1.ready = 0; + set_dac1_rate(s, val); + } + return put_user(s->dac1rate, p); + + case SNDCTL_DSP_STEREO: + if (get_user(val, p)) + return -EFAULT; + stop_dac1(s); + s->dma_dac1.ready = 0; + spin_lock_irqsave(&s->lock, flags); + if (val) + s->sctrl |= SCTRL_P1SMB; + else + s->sctrl &= ~SCTRL_P1SMB; + outl(s->sctrl, s->io+ES1371_REG_SERIAL_CONTROL); + spin_unlock_irqrestore(&s->lock, flags); + return 0; + + case SNDCTL_DSP_CHANNELS: + if (get_user(val, p)) + return -EFAULT; + if (val != 0) { + stop_dac1(s); + s->dma_dac1.ready = 0; + spin_lock_irqsave(&s->lock, flags); + if (val >= 2) + s->sctrl |= SCTRL_P1SMB; + else + s->sctrl &= ~SCTRL_P1SMB; + outl(s->sctrl, s->io+ES1371_REG_SERIAL_CONTROL); + spin_unlock_irqrestore(&s->lock, flags); + } + return put_user((s->sctrl & SCTRL_P1SMB) ? 2 : 1, p); + + case SNDCTL_DSP_GETFMTS: /* Returns a mask */ + return put_user(AFMT_S16_LE|AFMT_U8, p); + + case SNDCTL_DSP_SETFMT: /* Selects ONE fmt*/ + if (get_user(val, p)) + return -EFAULT; + if (val != AFMT_QUERY) { + stop_dac1(s); + s->dma_dac1.ready = 0; + spin_lock_irqsave(&s->lock, flags); + if (val == AFMT_S16_LE) + s->sctrl |= SCTRL_P1SEB; + else + s->sctrl &= ~SCTRL_P1SEB; + outl(s->sctrl, s->io+ES1371_REG_SERIAL_CONTROL); + spin_unlock_irqrestore(&s->lock, flags); + } + return put_user((s->sctrl & SCTRL_P1SEB) ? AFMT_S16_LE : AFMT_U8, p); + + case SNDCTL_DSP_POST: + return 0; + + case SNDCTL_DSP_GETTRIGGER: + return put_user((s->ctrl & CTRL_DAC1_EN) ? PCM_ENABLE_OUTPUT : 0, p); + + case SNDCTL_DSP_SETTRIGGER: + if (get_user(val, p)) + return -EFAULT; + if (val & PCM_ENABLE_OUTPUT) { + if (!s->dma_dac1.ready && (ret = prog_dmabuf_dac1(s))) + return ret; + s->dma_dac1.enabled = 1; + start_dac1(s); + } else { + s->dma_dac1.enabled = 0; + stop_dac1(s); + } + return 0; + + case SNDCTL_DSP_GETOSPACE: + if (!s->dma_dac1.ready && (val = prog_dmabuf_dac1(s)) != 0) + return val; + spin_lock_irqsave(&s->lock, flags); + es1371_update_ptr(s); + abinfo.fragsize = s->dma_dac1.fragsize; + count = s->dma_dac1.count; + if (count < 0) + count = 0; + abinfo.bytes = s->dma_dac1.dmasize - count; + abinfo.fragstotal = s->dma_dac1.numfrag; + abinfo.fragments = abinfo.bytes >> s->dma_dac1.fragshift; + spin_unlock_irqrestore(&s->lock, flags); + return copy_to_user((void __user *)arg, &abinfo, sizeof(abinfo)) ? -EFAULT : 0; + + case SNDCTL_DSP_NONBLOCK: + file->f_flags |= O_NONBLOCK; + return 0; + + case SNDCTL_DSP_GETODELAY: + if (!s->dma_dac1.ready && (val = prog_dmabuf_dac1(s)) != 0) + return val; + spin_lock_irqsave(&s->lock, flags); + es1371_update_ptr(s); + count = s->dma_dac1.count; + spin_unlock_irqrestore(&s->lock, flags); + if (count < 0) + count = 0; + return put_user(count, p); + + case SNDCTL_DSP_GETOPTR: + if (!s->dma_dac1.ready && (val = prog_dmabuf_dac1(s)) != 0) + return val; + spin_lock_irqsave(&s->lock, flags); + es1371_update_ptr(s); + cinfo.bytes = s->dma_dac1.total_bytes; + count = s->dma_dac1.count; + if (count < 0) + count = 0; + cinfo.blocks = count >> s->dma_dac1.fragshift; + cinfo.ptr = s->dma_dac1.hwptr; + if (s->dma_dac1.mapped) + s->dma_dac1.count &= s->dma_dac1.fragsize-1; + spin_unlock_irqrestore(&s->lock, flags); + if (copy_to_user((void __user *)arg, &cinfo, sizeof(cinfo))) + return -EFAULT; + return 0; + + case SNDCTL_DSP_GETBLKSIZE: + if ((val = prog_dmabuf_dac1(s))) + return val; + return put_user(s->dma_dac1.fragsize, p); + + case SNDCTL_DSP_SETFRAGMENT: + if (get_user(val, p)) + return -EFAULT; + s->dma_dac1.ossfragshift = val & 0xffff; + s->dma_dac1.ossmaxfrags = (val >> 16) & 0xffff; + if (s->dma_dac1.ossfragshift < 4) + s->dma_dac1.ossfragshift = 4; + if (s->dma_dac1.ossfragshift > 15) + s->dma_dac1.ossfragshift = 15; + if (s->dma_dac1.ossmaxfrags < 4) + s->dma_dac1.ossmaxfrags = 4; + return 0; + + case SNDCTL_DSP_SUBDIVIDE: + if (s->dma_dac1.subdivision) + return -EINVAL; + if (get_user(val, p)) + return -EFAULT; + if (val != 1 && val != 2 && val != 4) + return -EINVAL; + s->dma_dac1.subdivision = val; + return 0; + + case SOUND_PCM_READ_RATE: + return put_user(s->dac1rate, p); + + case SOUND_PCM_READ_CHANNELS: + return put_user((s->sctrl & SCTRL_P1SMB) ? 2 : 1, p); + + case SOUND_PCM_READ_BITS: + return put_user((s->sctrl & SCTRL_P1SEB) ? 16 : 8, p); + + case SOUND_PCM_WRITE_FILTER: + case SNDCTL_DSP_SETSYNCRO: + case SOUND_PCM_READ_FILTER: + return -EINVAL; + + } + return mixdev_ioctl(s->codec, cmd, arg); +} + +static int es1371_open_dac(struct inode *inode, struct file *file) +{ + int minor = iminor(inode); + DECLARE_WAITQUEUE(wait, current); + unsigned long flags; + struct list_head *list; + struct es1371_state *s; + + for (list = devs.next; ; list = list->next) { + if (list == &devs) + return -ENODEV; + s = list_entry(list, struct es1371_state, devs); + if (!((s->dev_dac ^ minor) & ~0xf)) + break; + } + VALIDATE_STATE(s); + /* we allow opening with O_RDWR, most programs do it although they will only write */ +#if 0 + if (file->f_mode & FMODE_READ) + return -EPERM; +#endif + if (!(file->f_mode & FMODE_WRITE)) + return -EINVAL; + file->private_data = s; + /* wait for device to become free */ + down(&s->open_sem); + while (s->open_mode & FMODE_DAC) { + if (file->f_flags & O_NONBLOCK) { + up(&s->open_sem); + return -EBUSY; + } + add_wait_queue(&s->open_wait, &wait); + __set_current_state(TASK_INTERRUPTIBLE); + up(&s->open_sem); + schedule(); + remove_wait_queue(&s->open_wait, &wait); + set_current_state(TASK_RUNNING); + if (signal_pending(current)) + return -ERESTARTSYS; + down(&s->open_sem); + } + s->dma_dac1.ossfragshift = s->dma_dac1.ossmaxfrags = s->dma_dac1.subdivision = 0; + s->dma_dac1.enabled = 1; + set_dac1_rate(s, 8000); + spin_lock_irqsave(&s->lock, flags); + s->sctrl &= ~SCTRL_P1FMT; + if ((minor & 0xf) == SND_DEV_DSP16) + s->sctrl |= ES1371_FMT_S16_MONO << SCTRL_SH_P1FMT; + else + s->sctrl |= ES1371_FMT_U8_MONO << SCTRL_SH_P1FMT; + outl(s->sctrl, s->io+ES1371_REG_SERIAL_CONTROL); + spin_unlock_irqrestore(&s->lock, flags); + s->open_mode |= FMODE_DAC; + up(&s->open_sem); + return nonseekable_open(inode, file); +} + +static int es1371_release_dac(struct inode *inode, struct file *file) +{ + struct es1371_state *s = (struct es1371_state *)file->private_data; + + VALIDATE_STATE(s); + lock_kernel(); + drain_dac1(s, file->f_flags & O_NONBLOCK); + down(&s->open_sem); + stop_dac1(s); + dealloc_dmabuf(s, &s->dma_dac1); + s->open_mode &= ~FMODE_DAC; + up(&s->open_sem); + wake_up(&s->open_wait); + unlock_kernel(); + return 0; +} + +static /*const*/ struct file_operations es1371_dac_fops = { + .owner = THIS_MODULE, + .llseek = no_llseek, + .write = es1371_write_dac, + .poll = es1371_poll_dac, + .ioctl = es1371_ioctl_dac, + .mmap = es1371_mmap_dac, + .open = es1371_open_dac, + .release = es1371_release_dac, +}; + +/* --------------------------------------------------------------------- */ + +static ssize_t es1371_midi_read(struct file *file, char __user *buffer, size_t count, loff_t *ppos) +{ + struct es1371_state *s = (struct es1371_state *)file->private_data; + DECLARE_WAITQUEUE(wait, current); + ssize_t ret; + unsigned long flags; + unsigned ptr; + int cnt; + + VALIDATE_STATE(s); + if (!access_ok(VERIFY_WRITE, buffer, count)) + return -EFAULT; + if (count == 0) + return 0; + ret = 0; + add_wait_queue(&s->midi.iwait, &wait); + while (count > 0) { + spin_lock_irqsave(&s->lock, flags); + ptr = s->midi.ird; + cnt = MIDIINBUF - ptr; + if (s->midi.icnt < cnt) + cnt = s->midi.icnt; + if (cnt <= 0) + __set_current_state(TASK_INTERRUPTIBLE); + spin_unlock_irqrestore(&s->lock, flags); + if (cnt > count) + cnt = count; + if (cnt <= 0) { + if (file->f_flags & O_NONBLOCK) { + if (!ret) + ret = -EAGAIN; + break; + } + schedule(); + if (signal_pending(current)) { + if (!ret) + ret = -ERESTARTSYS; + break; + } + continue; + } + if (copy_to_user(buffer, s->midi.ibuf + ptr, cnt)) { + if (!ret) + ret = -EFAULT; + break; + } + ptr = (ptr + cnt) % MIDIINBUF; + spin_lock_irqsave(&s->lock, flags); + s->midi.ird = ptr; + s->midi.icnt -= cnt; + spin_unlock_irqrestore(&s->lock, flags); + count -= cnt; + buffer += cnt; + ret += cnt; + break; + } + __set_current_state(TASK_RUNNING); + remove_wait_queue(&s->midi.iwait, &wait); + return ret; +} + +static ssize_t es1371_midi_write(struct file *file, const char __user *buffer, size_t count, loff_t *ppos) +{ + struct es1371_state *s = (struct es1371_state *)file->private_data; + DECLARE_WAITQUEUE(wait, current); + ssize_t ret; + unsigned long flags; + unsigned ptr; + int cnt; + + VALIDATE_STATE(s); + if (!access_ok(VERIFY_READ, buffer, count)) + return -EFAULT; + if (count == 0) + return 0; + ret = 0; + add_wait_queue(&s->midi.owait, &wait); + while (count > 0) { + spin_lock_irqsave(&s->lock, flags); + ptr = s->midi.owr; + cnt = MIDIOUTBUF - ptr; + if (s->midi.ocnt + cnt > MIDIOUTBUF) + cnt = MIDIOUTBUF - s->midi.ocnt; + if (cnt <= 0) { + __set_current_state(TASK_INTERRUPTIBLE); + es1371_handle_midi(s); + } + spin_unlock_irqrestore(&s->lock, flags); + if (cnt > count) + cnt = count; + if (cnt <= 0) { + if (file->f_flags & O_NONBLOCK) { + if (!ret) + ret = -EAGAIN; + break; + } + schedule(); + if (signal_pending(current)) { + if (!ret) + ret = -ERESTARTSYS; + break; + } + continue; + } + if (copy_from_user(s->midi.obuf + ptr, buffer, cnt)) { + if (!ret) + ret = -EFAULT; + break; + } + ptr = (ptr + cnt) % MIDIOUTBUF; + spin_lock_irqsave(&s->lock, flags); + s->midi.owr = ptr; + s->midi.ocnt += cnt; + spin_unlock_irqrestore(&s->lock, flags); + count -= cnt; + buffer += cnt; + ret += cnt; + spin_lock_irqsave(&s->lock, flags); + es1371_handle_midi(s); + spin_unlock_irqrestore(&s->lock, flags); + } + __set_current_state(TASK_RUNNING); + remove_wait_queue(&s->midi.owait, &wait); + return ret; +} + +/* No kernel lock - we have our own spinlock */ +static unsigned int es1371_midi_poll(struct file *file, struct poll_table_struct *wait) +{ + struct es1371_state *s = (struct es1371_state *)file->private_data; + unsigned long flags; + unsigned int mask = 0; + + VALIDATE_STATE(s); + if (file->f_mode & FMODE_WRITE) + poll_wait(file, &s->midi.owait, wait); + if (file->f_mode & FMODE_READ) + poll_wait(file, &s->midi.iwait, wait); + spin_lock_irqsave(&s->lock, flags); + if (file->f_mode & FMODE_READ) { + if (s->midi.icnt > 0) + mask |= POLLIN | POLLRDNORM; + } + if (file->f_mode & FMODE_WRITE) { + if (s->midi.ocnt < MIDIOUTBUF) + mask |= POLLOUT | POLLWRNORM; + } + spin_unlock_irqrestore(&s->lock, flags); + return mask; +} + +static int es1371_midi_open(struct inode *inode, struct file *file) +{ + int minor = iminor(inode); + DECLARE_WAITQUEUE(wait, current); + unsigned long flags; + struct list_head *list; + struct es1371_state *s; + + for (list = devs.next; ; list = list->next) { + if (list == &devs) + return -ENODEV; + s = list_entry(list, struct es1371_state, devs); + if (s->dev_midi == minor) + break; + } + VALIDATE_STATE(s); + file->private_data = s; + /* wait for device to become free */ + down(&s->open_sem); + while (s->open_mode & (file->f_mode << FMODE_MIDI_SHIFT)) { + if (file->f_flags & O_NONBLOCK) { + up(&s->open_sem); + return -EBUSY; + } + add_wait_queue(&s->open_wait, &wait); + __set_current_state(TASK_INTERRUPTIBLE); + up(&s->open_sem); + schedule(); + remove_wait_queue(&s->open_wait, &wait); + set_current_state(TASK_RUNNING); + if (signal_pending(current)) + return -ERESTARTSYS; + down(&s->open_sem); + } + spin_lock_irqsave(&s->lock, flags); + if (!(s->open_mode & (FMODE_MIDI_READ | FMODE_MIDI_WRITE))) { + s->midi.ird = s->midi.iwr = s->midi.icnt = 0; + s->midi.ord = s->midi.owr = s->midi.ocnt = 0; + outb(UCTRL_CNTRL_SWR, s->io+ES1371_REG_UART_CONTROL); + outb(0, s->io+ES1371_REG_UART_CONTROL); + outb(0, s->io+ES1371_REG_UART_TEST); + } + if (file->f_mode & FMODE_READ) { + s->midi.ird = s->midi.iwr = s->midi.icnt = 0; + } + if (file->f_mode & FMODE_WRITE) { + s->midi.ord = s->midi.owr = s->midi.ocnt = 0; + } + s->ctrl |= CTRL_UART_EN; + outl(s->ctrl, s->io+ES1371_REG_CONTROL); + es1371_handle_midi(s); + spin_unlock_irqrestore(&s->lock, flags); + s->open_mode |= (file->f_mode << FMODE_MIDI_SHIFT) & (FMODE_MIDI_READ | FMODE_MIDI_WRITE); + up(&s->open_sem); + return nonseekable_open(inode, file); +} + +static int es1371_midi_release(struct inode *inode, struct file *file) +{ + struct es1371_state *s = (struct es1371_state *)file->private_data; + DECLARE_WAITQUEUE(wait, current); + unsigned long flags; + unsigned count, tmo; + + VALIDATE_STATE(s); + lock_kernel(); + if (file->f_mode & FMODE_WRITE) { + add_wait_queue(&s->midi.owait, &wait); + for (;;) { + __set_current_state(TASK_INTERRUPTIBLE); + spin_lock_irqsave(&s->lock, flags); + count = s->midi.ocnt; + spin_unlock_irqrestore(&s->lock, flags); + if (count <= 0) + break; + if (signal_pending(current)) + break; + if (file->f_flags & O_NONBLOCK) + break; + tmo = (count * HZ) / 3100; + if (!schedule_timeout(tmo ? : 1) && tmo) + printk(KERN_DEBUG PFX "midi timed out??\n"); + } + remove_wait_queue(&s->midi.owait, &wait); + set_current_state(TASK_RUNNING); + } + down(&s->open_sem); + s->open_mode &= ~((file->f_mode << FMODE_MIDI_SHIFT) & (FMODE_MIDI_READ|FMODE_MIDI_WRITE)); + spin_lock_irqsave(&s->lock, flags); + if (!(s->open_mode & (FMODE_MIDI_READ | FMODE_MIDI_WRITE))) { + s->ctrl &= ~CTRL_UART_EN; + outl(s->ctrl, s->io+ES1371_REG_CONTROL); + } + spin_unlock_irqrestore(&s->lock, flags); + up(&s->open_sem); + wake_up(&s->open_wait); + unlock_kernel(); + return 0; +} + +static /*const*/ struct file_operations es1371_midi_fops = { + .owner = THIS_MODULE, + .llseek = no_llseek, + .read = es1371_midi_read, + .write = es1371_midi_write, + .poll = es1371_midi_poll, + .open = es1371_midi_open, + .release = es1371_midi_release, +}; + +/* --------------------------------------------------------------------- */ + +/* + * for debugging purposes, we'll create a proc device that dumps the + * CODEC chipstate + */ + +#ifdef ES1371_DEBUG +static int proc_es1371_dump (char *buf, char **start, off_t fpos, int length, int *eof, void *data) +{ + struct es1371_state *s; + int cnt, len = 0; + + if (list_empty(&devs)) + return 0; + s = list_entry(devs.next, struct es1371_state, devs); + /* print out header */ + len += sprintf(buf + len, "\t\tCreative ES137x Debug Dump-o-matic\n"); + + /* print out CODEC state */ + len += sprintf (buf + len, "AC97 CODEC state\n"); + for (cnt=0; cnt <= 0x7e; cnt = cnt +2) + len+= sprintf (buf + len, "reg:0x%02x val:0x%04x\n", cnt, rdcodec(s->codec, cnt)); + + if (fpos >=len){ + *start = buf; + *eof =1; + return 0; + } + *start = buf + fpos; + if ((len -= fpos) > length) + return length; + *eof =1; + return len; + +} +#endif /* ES1371_DEBUG */ + +/* --------------------------------------------------------------------- */ + +/* maximum number of devices; only used for command line params */ +#define NR_DEVICE 5 + +static int spdif[NR_DEVICE]; +static int nomix[NR_DEVICE]; +static int amplifier[NR_DEVICE]; + +static unsigned int devindex; + +module_param_array(spdif, bool, NULL, 0); +MODULE_PARM_DESC(spdif, "if 1 the output is in S/PDIF digital mode"); +module_param_array(nomix, bool, NULL, 0); +MODULE_PARM_DESC(nomix, "if 1 no analog audio is mixed to the digital output"); +module_param_array(amplifier, bool, NULL, 0); +MODULE_PARM_DESC(amplifier, "Set to 1 if the machine needs the amp control enabling (many laptops)"); + +MODULE_AUTHOR("Thomas M. Sailer, sailer@ife.ee.ethz.ch, hb9jnx@hb9w.che.eu"); +MODULE_DESCRIPTION("ES1371 AudioPCI97 Driver"); +MODULE_LICENSE("GPL"); + + +/* --------------------------------------------------------------------- */ + +static struct initvol { + int mixch; + int vol; +} initvol[] __devinitdata = { + { SOUND_MIXER_WRITE_LINE, 0x4040 }, + { SOUND_MIXER_WRITE_CD, 0x4040 }, + { MIXER_WRITE(SOUND_MIXER_VIDEO), 0x4040 }, + { SOUND_MIXER_WRITE_LINE1, 0x4040 }, + { SOUND_MIXER_WRITE_PCM, 0x4040 }, + { SOUND_MIXER_WRITE_VOLUME, 0x4040 }, + { MIXER_WRITE(SOUND_MIXER_PHONEOUT), 0x4040 }, + { SOUND_MIXER_WRITE_OGAIN, 0x4040 }, + { MIXER_WRITE(SOUND_MIXER_PHONEIN), 0x4040 }, + { SOUND_MIXER_WRITE_SPEAKER, 0x4040 }, + { SOUND_MIXER_WRITE_MIC, 0x4040 }, + { SOUND_MIXER_WRITE_RECLEV, 0x4040 }, + { SOUND_MIXER_WRITE_IGAIN, 0x4040 } +}; + +static struct +{ + short svid, sdid; +} amplifier_needed[] = +{ + { 0x107B, 0x2150 }, /* Gateway Solo 2150 */ + { 0x13BD, 0x100C }, /* Mebius PC-MJ100V */ + { 0x1102, 0x5938 }, /* Targa Xtender 300 */ + { 0x1102, 0x8938 }, /* IPC notebook */ + { PCI_ANY_ID, PCI_ANY_ID } +}; + +static int __devinit es1371_probe(struct pci_dev *pcidev, const struct pci_device_id *pciid) +{ + struct es1371_state *s; + struct gameport *gp; + mm_segment_t fs; + int i, gpio, val, res = -1; + int idx; + unsigned long tmo; + signed long tmo2; + unsigned int cssr; + + if ((res=pci_enable_device(pcidev))) + return res; + + if (!(pci_resource_flags(pcidev, 0) & IORESOURCE_IO)) + return -ENODEV; + if (pcidev->irq == 0) + return -ENODEV; + i = pci_set_dma_mask(pcidev, 0xffffffff); + if (i) { + printk(KERN_WARNING "es1371: architecture does not support 32bit PCI busmaster DMA\n"); + return i; + } + if (!(s = kmalloc(sizeof(struct es1371_state), GFP_KERNEL))) { + printk(KERN_WARNING PFX "out of memory\n"); + return -ENOMEM; + } + memset(s, 0, sizeof(struct es1371_state)); + + s->codec = ac97_alloc_codec(); + if(s->codec == NULL) + goto err_codec; + + init_waitqueue_head(&s->dma_adc.wait); + init_waitqueue_head(&s->dma_dac1.wait); + init_waitqueue_head(&s->dma_dac2.wait); + init_waitqueue_head(&s->open_wait); + init_waitqueue_head(&s->midi.iwait); + init_waitqueue_head(&s->midi.owait); + init_MUTEX(&s->open_sem); + spin_lock_init(&s->lock); + s->magic = ES1371_MAGIC; + s->dev = pcidev; + s->io = pci_resource_start(pcidev, 0); + s->irq = pcidev->irq; + s->vendor = pcidev->vendor; + s->device = pcidev->device; + pci_read_config_byte(pcidev, PCI_REVISION_ID, &s->rev); + s->codec->private_data = s; + s->codec->id = 0; + s->codec->codec_read = rdcodec; + s->codec->codec_write = wrcodec; + printk(KERN_INFO PFX "found chip, vendor id 0x%04x device id 0x%04x revision 0x%02x\n", + s->vendor, s->device, s->rev); + if (!request_region(s->io, ES1371_EXTENT, "es1371")) { + printk(KERN_ERR PFX "io ports %#lx-%#lx in use\n", s->io, s->io+ES1371_EXTENT-1); + res = -EBUSY; + goto err_region; + } + if ((res=request_irq(s->irq, es1371_interrupt, SA_SHIRQ, "es1371",s))) { + printk(KERN_ERR PFX "irq %u in use\n", s->irq); + goto err_irq; + } + printk(KERN_INFO PFX "found es1371 rev %d at io %#lx irq %u\n", + s->rev, s->io, s->irq); + /* register devices */ + if ((res=(s->dev_audio = register_sound_dsp(&es1371_audio_fops,-1)))<0) + goto err_dev1; + if ((res=(s->codec->dev_mixer = register_sound_mixer(&es1371_mixer_fops, -1))) < 0) + goto err_dev2; + if ((res=(s->dev_dac = register_sound_dsp(&es1371_dac_fops, -1))) < 0) + goto err_dev3; + if ((res=(s->dev_midi = register_sound_midi(&es1371_midi_fops, -1)))<0 ) + goto err_dev4; +#ifdef ES1371_DEBUG + /* initialize the debug proc device */ + s->ps = create_proc_read_entry("es1371",0,NULL,proc_es1371_dump,NULL); +#endif /* ES1371_DEBUG */ + + /* initialize codec registers */ + s->ctrl = 0; + + /* Check amplifier requirements */ + + if (amplifier[devindex]) + s->ctrl |= CTRL_GPIO_OUT0; + else for(idx = 0; amplifier_needed[idx].svid != PCI_ANY_ID; idx++) + { + if(pcidev->subsystem_vendor == amplifier_needed[idx].svid && + pcidev->subsystem_device == amplifier_needed[idx].sdid) + { + s->ctrl |= CTRL_GPIO_OUT0; /* turn internal amplifier on */ + printk(KERN_INFO PFX "Enabling internal amplifier.\n"); + } + } + + for (gpio = 0x218; gpio >= 0x200; gpio -= 0x08) + if (request_region(gpio, JOY_EXTENT, "es1371")) + break; + + if (gpio < 0x200) { + printk(KERN_ERR PFX "no free joystick address found\n"); + } else if (!(s->gameport = gp = gameport_allocate_port())) { + printk(KERN_ERR PFX "can not allocate memory for gameport\n"); + release_region(gpio, JOY_EXTENT); + } else { + gameport_set_name(gp, "ESS1371 Gameport"); + gameport_set_phys(gp, "isa%04x/gameport0", gpio); + gp->dev.parent = &s->dev->dev; + gp->io = gpio; + s->ctrl |= CTRL_JYSTK_EN | (((gpio >> 3) & CTRL_JOY_MASK) << CTRL_JOY_SHIFT); + } + + s->sctrl = 0; + cssr = 0; + s->spdif_volume = -1; + /* check to see if s/pdif mode is being requested */ + if (spdif[devindex]) { + if (s->rev >= 4) { + printk(KERN_INFO PFX "enabling S/PDIF output\n"); + s->spdif_volume = 0; + cssr |= STAT_EN_SPDIF; + s->ctrl |= CTRL_SPDIFEN_B; + if (nomix[devindex]) /* don't mix analog inputs to s/pdif output */ + s->ctrl |= CTRL_RECEN_B; + } else { + printk(KERN_ERR PFX "revision %d does not support S/PDIF\n", s->rev); + } + } + /* initialize the chips */ + outl(s->ctrl, s->io+ES1371_REG_CONTROL); + outl(s->sctrl, s->io+ES1371_REG_SERIAL_CONTROL); + outl(LEGACY_JFAST, s->io+ES1371_REG_LEGACY); + pci_set_master(pcidev); /* enable bus mastering */ + /* if we are a 5880 turn on the AC97 */ + if (s->vendor == PCI_VENDOR_ID_ENSONIQ && + ((s->device == PCI_DEVICE_ID_ENSONIQ_CT5880 && s->rev >= CT5880REV_CT5880_C) || + (s->device == PCI_DEVICE_ID_ENSONIQ_ES1371 && s->rev == ES1371REV_CT5880_A) || + (s->device == PCI_DEVICE_ID_ENSONIQ_ES1371 && s->rev == ES1371REV_ES1373_8))) { + cssr |= CSTAT_5880_AC97_RST; + outl(cssr, s->io+ES1371_REG_STATUS); + /* need to delay around 20ms(bleech) to give + some CODECs enough time to wakeup */ + tmo = jiffies + (HZ / 50) + 1; + for (;;) { + tmo2 = tmo - jiffies; + if (tmo2 <= 0) + break; + schedule_timeout(tmo2); + } + } + /* AC97 warm reset to start the bitclk */ + outl(s->ctrl | CTRL_SYNCRES, s->io+ES1371_REG_CONTROL); + udelay(2); + outl(s->ctrl, s->io+ES1371_REG_CONTROL); + /* init the sample rate converter */ + src_init(s); + /* codec init */ + if (!ac97_probe_codec(s->codec)) { + res = -ENODEV; + goto err_gp; + } + /* set default values */ + + fs = get_fs(); + set_fs(KERNEL_DS); + val = SOUND_MASK_LINE; + mixdev_ioctl(s->codec, SOUND_MIXER_WRITE_RECSRC, (unsigned long)&val); + for (i = 0; i < sizeof(initvol)/sizeof(initvol[0]); i++) { + val = initvol[i].vol; + mixdev_ioctl(s->codec, initvol[i].mixch, (unsigned long)&val); + } + /* mute master and PCM when in S/PDIF mode */ + if (s->spdif_volume != -1) { + val = 0x0000; + s->codec->mixer_ioctl(s->codec, SOUND_MIXER_WRITE_VOLUME, (unsigned long)&val); + s->codec->mixer_ioctl(s->codec, SOUND_MIXER_WRITE_PCM, (unsigned long)&val); + } + set_fs(fs); + /* turn on S/PDIF output driver if requested */ + outl(cssr, s->io+ES1371_REG_STATUS); + + /* register gameport */ + if (s->gameport) + gameport_register_port(s->gameport); + + /* store it in the driver field */ + pci_set_drvdata(pcidev, s); + /* put it into driver list */ + list_add_tail(&s->devs, &devs); + /* increment devindex */ + if (devindex < NR_DEVICE-1) + devindex++; + return 0; + + err_gp: + if (s->gameport) { + release_region(s->gameport->io, JOY_EXTENT); + gameport_free_port(s->gameport); + } +#ifdef ES1371_DEBUG + if (s->ps) + remove_proc_entry("es1371", NULL); +#endif + unregister_sound_midi(s->dev_midi); + err_dev4: + unregister_sound_dsp(s->dev_dac); + err_dev3: + unregister_sound_mixer(s->codec->dev_mixer); + err_dev2: + unregister_sound_dsp(s->dev_audio); + err_dev1: + printk(KERN_ERR PFX "cannot register misc device\n"); + free_irq(s->irq, s); + err_irq: + release_region(s->io, ES1371_EXTENT); + err_region: + err_codec: + ac97_release_codec(s->codec); + kfree(s); + return res; +} + +static void __devexit es1371_remove(struct pci_dev *dev) +{ + struct es1371_state *s = pci_get_drvdata(dev); + + if (!s) + return; + list_del(&s->devs); +#ifdef ES1371_DEBUG + if (s->ps) + remove_proc_entry("es1371", NULL); +#endif /* ES1371_DEBUG */ + outl(0, s->io+ES1371_REG_CONTROL); /* switch everything off */ + outl(0, s->io+ES1371_REG_SERIAL_CONTROL); /* clear serial interrupts */ + synchronize_irq(s->irq); + free_irq(s->irq, s); + if (s->gameport) { + int gpio = s->gameport->io; + gameport_unregister_port(s->gameport); + release_region(gpio, JOY_EXTENT); + } + release_region(s->io, ES1371_EXTENT); + unregister_sound_dsp(s->dev_audio); + unregister_sound_mixer(s->codec->dev_mixer); + unregister_sound_dsp(s->dev_dac); + unregister_sound_midi(s->dev_midi); + ac97_release_codec(s->codec); + kfree(s); + pci_set_drvdata(dev, NULL); +} + +static struct pci_device_id id_table[] = { + { PCI_VENDOR_ID_ENSONIQ, PCI_DEVICE_ID_ENSONIQ_ES1371, PCI_ANY_ID, PCI_ANY_ID, 0, 0 }, + { PCI_VENDOR_ID_ENSONIQ, PCI_DEVICE_ID_ENSONIQ_CT5880, PCI_ANY_ID, PCI_ANY_ID, 0, 0 }, + { PCI_VENDOR_ID_ECTIVA, PCI_DEVICE_ID_ECTIVA_EV1938, PCI_ANY_ID, PCI_ANY_ID, 0, 0 }, + { 0, } +}; + +MODULE_DEVICE_TABLE(pci, id_table); + +static struct pci_driver es1371_driver = { + .name = "es1371", + .id_table = id_table, + .probe = es1371_probe, + .remove = __devexit_p(es1371_remove), +}; + +static int __init init_es1371(void) +{ + printk(KERN_INFO PFX "version v0.32 time " __TIME__ " " __DATE__ "\n"); + return pci_module_init(&es1371_driver); +} + +static void __exit cleanup_es1371(void) +{ + printk(KERN_INFO PFX "unloading\n"); + pci_unregister_driver(&es1371_driver); +} + +module_init(init_es1371); +module_exit(cleanup_es1371); + +/* --------------------------------------------------------------------- */ + +#ifndef MODULE + +/* format is: es1371=[spdif,[nomix,[amplifier]]] */ + +static int __init es1371_setup(char *str) +{ + static unsigned __initdata nr_dev = 0; + + if (nr_dev >= NR_DEVICE) + return 0; + + (void) + ((get_option(&str, &spdif[nr_dev]) == 2) + && (get_option(&str, &nomix[nr_dev]) == 2) + && (get_option(&str, &lifier[nr_dev]))); + + nr_dev++; + return 1; +} + +__setup("es1371=", es1371_setup); + +#endif /* MODULE */ |